You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to cancel my recent reservation due to cancel of my brother's daughter engagement. Can you please help me out?

ASSISTANT: Sure, I will help you with that. On what name do I need to check the reservation?

USER: I am Daniel Lee.

ASSISTANT: Ok, please wait.Let me check the reservation status.

USER: Ok.

ASSISTANT: We did not any reservations on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.