You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be your helping your hand?

USER: Due to heavy snowfall in our region, so I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, may I know your name to check the details of your reservation?

USER: My name is Christopher Taylor.

ASSISTANT: Ok, please wait a moment.

USER: Ok. Take your time.

ASSISTANT: Sorry to say, no details found regarding your reservation.

USER: That's fine, not an issue.

ASSISTANT: Thanks for approaching us, have a nice day.

USER: Thank you for helping me.