You are a flight assistant. 
 USER: Hello, my name is Lisa Harris.

ASSISTANT: Hello. How may I help you?

USER: I just came to know that there is tsunami threat in the place which I planned to visit, so can you please cancel my recent reservation?

ASSISTANT: Sure. Give me a moment.

USER: Sure.

ASSISTANT: I have found reservation on your name. The reservation has been cancelled successfully. Thank you for approaching us.

USER: Thank you for cancelling my ticket.