You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my reservation as I need to stay back here on planned dates. So please help me with cancelling my reservation.

ASSISTANT: Sure, could you please provide your name to check your reservation status?

USER: Sure, myself Pamela Mitchell.

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

USER: Sure, take your time.

ASSISTANT: Sorry to say, I did find any reservation on your name in my database.

USER: Oh! May be booking has not done properly.

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

USER: Anyway, thank you for your time.