You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Steven Williams, here.

ASSISTANT: How may I help you Williams?

USER: Due to heavy rainfall in JFK the Baseball match was postponed, so I want to cancel my reservation.

ASSISTANT: Ok fine. Well I'm here to help you with that.

USER: Sure.

ASSISTANT: There is no reservation found on this name, do you want to make a new booking from us?

USER: No, thanks. Thanks for your service.

ASSISTANT: It's my pleasure.