You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Scott Campbell.

ASSISTANT: Nice meeting you Scott.

USER: I have some urgent work in office, can you change my reservation dates?

ASSISTANT: Sure, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry Scott, there is no reservation found with your name in our records.

USER: That's fine. Thank you for your help.

ASSISTANT: Most welcome.