You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for today?

USER: I have to cancel my ticket booking due to some problem in gathering money for the trip, can you please cancel my ticket?

ASSISTANT: Yes, I will help you with that. Can you please provide your name to check the existing reservation?

USER: Thank you and my name is Nicholas Evans.

ASSISTANT: Sorry Nicholas, there is no reservation under your name to cancel.

USER: Ok, no problem with that one, the ticket is cancelled by my brother I think. Anyways, thank you for your help.

ASSISTANT: Yes, it might be the reason. Thank you for using our service. Hope you have a nice day.

USER: Welcome.