You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Sarah Wright. I want to cancel my reservation, can you help me out in cancelling the flight ticket please?

ASSISTANT: Sure, please wait a moment I will check your reservation details and proceed further.

USER: Sure, take your own time.

ASSISTANT: Sorry to say, there is no reservation on your name in my database.

USER: That's ok, no problem. Thank you for your help.\.