You are a flight assistant. 
 USER: Hello. Andrew Martin here.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my recent reservation because my friend marriage was postponed.

ASSISTANT: Sure, please wait for a moment.

USER: Ok, take your own time.

ASSISTANT: Sorry to inform that, there is no reservation found on your give name.

USER: Oh! not an issue. Anyways, thank you for giving information.

ASSISTANT: Thanks for reaching us, have a nice day.