You are a flight assistant. 
 USER: Hello, my name is Edward Smith.

ASSISTANT: Hello. How may I abet you today?

USER: I would like to cancel my reservation as my appointment with my doctor got postponed. Can you help me with it?

ASSISTANT: Sure, give me a moment I will check your reservation status.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately we did not found any reservation by this name.

USER: It's ok, thank you for the response.

ASSISTANT: Thanks for choosing us.