You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: My holiday trip has been postponed due to some climate issues at New York. Can you please change my reservation?

ASSISTANT: Sure, Kindly mention your travel dates? Ok, may I know your name?

USER: David Carter is my name.

ASSISTANT: Ok, Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thanks for reaching us, have a good day.

USER: Thanks for your information.