You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Steven Brown.

ASSISTANT: How may I assist you today?

USER: My business meeting venue got changed to Washington, can you please help me in changing the reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.