You are a flight assistant. 
 USER: Hello, I am Shirley Nelson.

ASSISTANT: Hello, How can I assist you?

USER: As my interview got postponed, can you please change my recent reservation?

ASSISTANT: Sure. wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation found with your name.

USER: Ok. Thank you.

ASSISTANT: Thank you for reaching us.