You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Scott Walker.

ASSISTANT: Yes, Scott.

USER: I want to cancel my reservation, due to an emergency.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Let me check. Sorry Scott, no reservation found with your name to cancel the reservation.

USER: That's ok. thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Welcome.