You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Good Evening.

USER: I want to change my reservation to other locations for some personal issues. Can you please help me out?

ASSISTANT: Sure, may I know your name?

USER: Myself Jonathan Evans. Can I have the information please?

ASSISTANT: I am sorry Evans, there is no reservation found with your name to change.

USER: Its great, no issues. Thank you for the information.

ASSISTANT: Your welcome.