You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am Janet Jones. I would like to change my reservation due to heavy snowfall, can you help me?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: That's fine, no problem. Thank you for helping me.

ASSISTANT: Your welcome.