You are a flight assistant. 
 USER: Hello. Frank Hill, here.

ASSISTANT: Hello. How may I help you?

USER: As it is winter season, there is heavy snowfall in JFK, so I want to cancel my reservation.

ASSISTANT: Ok. Please give me a minute to check your reservation.

USER: Sure.

ASSISTANT: Sorry. There is no reservation on your name.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for choosing us, have a nice day.