You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As my friend engagement has been postponed, so I need to change my existing reservation.

ASSISTANT: Sure, may I know your please?

USER: Jennifer Edwards is my name.

ASSISTANT: Thanks for providing your name. Sorry there is reservation found on your name.

USER: OK, no problem. Thanks for your information.

ASSISTANT: Thanks for connecting us, have a great day.