How to get response value of soap envelop

Question

I have a response.

 

<?xml version='1.0' encoding='UTF-8'?>

<SOAP-ENV:Envelope xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'>

<SOAP-ENV:Body>

<ns0:serviceResponse xmlns:ns0='http://www.ingrammicro.com/order/OrderEventViewResponse_v1_0/types'>

<responsePreamble xmlns=''>

<requestStatus xmlns=''>SUCCESS</requestStatus>

</responsePreamble>

<orderEventViewResponse xmlns=''>

<numberOfResults xmlns=''>1</numberOfResults>

<responseData xmlns=''>

<companyCode xmlns=''/>

<orderDate xmlns=''>2018-08-02</orderDate>

<branchNumber xmlns=''>20</branchNumber>

<orderNumber xmlns=''>RBV00</orderNumber>

<distributionNumber xmlns=''>1</distributionNumber>

<shipmentNumber xmlns=''>1</shipmentNumber>

<lifeCycleEvent xmlns=''>

<statusCode xmlns=''>V1</statusCode>

<statusDescription xmlns=''>NO DESCRIPTION</statusDescription>

<reasonText xmlns=''>ORDER VOIDED; VOID ORDER</reasonText>

<lineNumber xmlns=''>0</lineNumber>

<promiseDate xmlns=''>2018-08-02</promiseDate>

<date xmlns=''>2018-08-02</date>

<time xmlns=''>12:33:04.989</time>

<timestamp xmlns=''>2018-08-02T12:33:04.989-07:00</timestamp>

<programName xmlns=''>ORP474</programName>

<operatorID xmlns=''>LU62</operatorID>

</lifeCycleEvent>

<lifeCycleEvent xmlns=''>

<statusCode xmlns=''>O</statusCode>

<statusDescription xmlns=''>NO DESCRIPTION</statusDescription>

<reasonText xmlns=''>ORDER ENTRY</reasonText>

<lineNumber xmlns=''>0</lineNumber>

<promiseDate xmlns=''>2018-08-02</promiseDate>

<date xmlns=''>2018-08-02</date>

<time xmlns=''>12:33:03.993</time>

<timestamp xmlns=''>2018-08-02T12:33:03.993-07:00</timestamp>

<programName xmlns=''>ORP678*</programName>

<operatorID xmlns=''>AG62</operatorID>

</lifeCycleEvent>

</responseData>

</orderEventViewResponse>

</ns0:serviceResponse>

</SOAP-ENV:Body>

</SOAP-ENV:Envelope>

 

 

I want value say ORP678 of <programName> of  <lifeCycleEvent> node