You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Please help me with changing my reservation which is on the name Jack Wilson.

ASSISTANT: Sure, please wait a moment I will check the reservation status.

USER: Ok.

ASSISTANT: Thanks for waiting, we didn't found any reservation on this name.

USER: Fine, thanks for the information.

ASSISTANT: Thanks for reaching us.