You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I abet you?

USER: I actually made a reservation to New York, NY-JFK to submit my research documents but it got shifted to Detroit, MI-DTW  so I need to change an exiting reservation, will it be possible to change an existing reservation?

ASSISTANT: Sure, it can be done. To check the status of your reservation, can you help me with your name please?

USER: I made a reservation by this name Jason Robinson.

ASSISTANT: Ok, give me sometime to check and revert to you.

USER: Sure, take your time.

ASSISTANT: Thank you for being wait. It's unfortunate that there is no reservation available according to the name.

USER: That's ok, I think my ticket has not processed yet. Thanks for your information, I'll reach you later.

ASSISTANT: Thank you for being with us and we hope to serve you again.