You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Jeffrey Wilson. I need to amend my reservation, can you help me out?

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

USER: Thank you.

ASSISTANT: Please wait for a while, I will get bake to you.

USER: Sure.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.