You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Daniel Lee.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Daniel Lee, there is no active reservation found under your name to do cancellation.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.