You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Due to bad weather conditions, I want to change my existing reservation. Can you help me out?

ASSISTANT: Sure, I am blissful to help you. May I know your name please?

USER: Sure, my name is Rachel Smith.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to say that no reservation was found in our database on your name.

USER: That's ok, thank you.

ASSISTANT: Thanks for communicating with us.