You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that I can do for you now?

USER: I am Gregory White. I would like to change my reservation as I am moving to my hometown, can you please help me out?

ASSISTANT: Sure, I am happy to help you on that one.

USER: Thank you.

ASSISTANT: Thank you for your information, as per your request there is no previous ticket booking found to modify it.

USER: Ok no problem, thank you for your services.

ASSISTANT: It's my pleasure to help and thank you for reaching us.