You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Michael Harris here. Can you please help me in cancelling my recent booking? As I'm not in a position to catch the flight.

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

USER: Sure, I'll wait.

ASSISTANT: Sorry to say, I did not find any reservation on your name in my database.

USER: Oh! that's ok, thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice day.