You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Cynthia Martin. I want to cancel my recent reservation as I am not interested in the trip any more. Can you please help?

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that no reservation was found on your name.

USER: I have booked my ticket from here, how it is possible that you don't find it?

ASSISTANT: Can you please share your booking id?

USER: I think I lost it, let me find it and come back to you. Thank you.

ASSISTANT: Thank you for choosing us.