You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Owing to an emergency, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, I will help you with cancelling your reservation. May I know your good name for checking the existing reservation status?

USER: Sure, my name is Andrew Hill.

ASSISTANT: Ok Hill, please give me a moment to check whether the reservation existing or not.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry Hill, I did not came across your name in the reservation list to cancel.

USER: Ok fine, thank you for the information.

ASSISTANT: Most welcome. Thank you for contacting us.