You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am facing an issue in my office due to some important meeting that is going to be held, so I would like to change my previous flight ticket reservation, can you please help me in changing?

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Cynthia Scott.

ASSISTANT: I am sorry no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for your information.