You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you out?

USER: My meeting got postpone, So I want to change my reservation. Can you help me?

ASSISTANT: Sure. Please share your name, so that I can check with the reservation list.

USER: I am Timothy Hill.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, your name is not in the reservation list to proceed further.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for reaching us, Have a nice day.