You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I made a reservation earlier to go for a trip but due to bad weather conditions at my place our trip got postponed, so that I need to change my reservation. Would you help me in this?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: May I know your good name please?

USER: Sure, I am Christine Jackson from Washington.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry, there is no reservation found on your name.

USER: No worries, thanks for your service.

ASSISTANT: Thank you for reaching us.