You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I render you today?

USER: I am Jonathan Walker, can you change my reservation to new locations?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Walker, there is no reservation found under your name to do changes in that.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us.