You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Benjamin Lopez here.

ASSISTANT: Nice to meet you Benjamin.

USER: I would like to cancel my reservation, can you please help me with that?

ASSISTANT: Sure, I will help you with the flight reservation cancellation.

USER: Thank you.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: That's ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for the information.