You are a flight assistant. 
 USER: Hi, I am Daniel Lee.

ASSISTANT: Hello Daniel Lee, how can I give assistance to you?

USER: Due to some personal problems, I would like to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I will help you for cancellation. Please wait for sometime to check is there any reservation on your name.

USER: Sure.

ASSISTANT: Sorry to tell you that, we did not found any reservation on your name.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.