You are a flight assistant. 
 USER: Hello, I am Scott Walker.

ASSISTANT: Hello, how can I aid you today?

USER: My board meeting has been postponed so, I want to cancel my recent reservation. Can you help me with this?

ASSISTANT: Okay, please wait let me check the reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not found any reservation on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.