You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Frank Baker. I have a trip plan, but unfortunately there is a heavy rain fall, due to that reason I want to cancel my reservation, can you help me?

ASSISTANT: Sure Baker.

USER: Ok.

ASSISTANT: I have found your previous reservation, I have successfully cancelled your ticket.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.