You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Baker.

ASSISTANT: How may I guide you today?

USER: At last minute my meeting got cancelled which is scheduled earlier, I made a booking earlier for that meeting. So I want your help in cancel my reservation.

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: That's ok, not a problem.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thanks for your response.