You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: I would like to cancel my recent reservation because my trip dates are got postponed, can you help me?

ASSISTANT: Sure, may I know your good name please?

USER: I am Rachel Lewis.

ASSISTANT: Ok, please wait, let me check with your recent reservation status.

USER: Sure, take your own time.

ASSISTANT: There is no recent reservation found on your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.