You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Ryan Miller. For some personal issues I want to change my reservation, can you please help me out?

ASSISTANT: Nice to meet you Ryan. Sure, please wait for a minute. There is no reservation found on this name, do you want to make a new booking from us?

USER: Thanks for asking, but I don't have any plannings at. Thank you for the above information.

ASSISTANT: Ok fine. It's my pleasure, have a nice day.