You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: As my friend marriage location has been changed to another place. Can you please change my existing reservation?

ASSISTANT: Ok, may I know your name?

USER: Jennifer Campbell is my name.

ASSISTANT: Sorry there is no reservation found in your name.

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

ASSISTANT: Thank you.