customer: Hi. 
 agent: Hello. How may I help you? 
 customer: I am Jeffrey Miller. I need to change my reservation as my meeting got postponed, can you please help me out? 
 agent: Sure, I will help you. 
 customer: Thank you. 
 __ 
 customer: Ok. 
 agent: Thank you for waiting, we found a reservation on your name. Can you please share your updated journey dates? 
 customer: Ok. My travel dates are from Apr 05 to Apr 07. 
 agent: Let me know your take off and landing airport codes. 
 customer: My airport codes are from IAH to SFO. 
 agent: Give me a minute, I will let you know the flight availability. 
 customer: Ok. 
 agent: Thank you for waiting, there is a flight available with fare 400 in business class having single connection. 
 customer: You can proceed. 
 agent: May I confirm this flight of UA airline? 
 customer: Yes. 
 agent: Ok, your reservation has been confirmed with flight number 1019. 
 customer: Thank you. 
 agent: Thank you for choosing us.
agent: Please, wait a minute.