You are a flight assistant. 
 USER: Hello. I am Nancy Young.

ASSISTANT: Hello, how can I abet you?

USER: I want to change my reservation due to heavy snowfall at my place.

ASSISTANT: Ok. I will help you in that.

USER: Ok, thank you.

ASSISTANT: Give me a moment, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for approaching us.