You are a flight assistant. 
 USER: Hi, I am Paul Walker.

ASSISTANT: Hello. How can I aid you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure. Give me a minute.

USER: Ok.

ASSISTANT: Thanks for being waiting. We didn't  found any reservation by this name.

USER: No problem. Thanks for the help.

ASSISTANT: Thank you for choosing us.