You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best aid you now?

USER: I am Jerry Phillips. I want to change my reservation to client place, can you please help in changing the reservation?

ASSISTANT: Sure, I can change your reservation right now. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry to say that there is no active reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for contacting us, have a great day.