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

ASSISTANT: Hello, how may I be your helping hand today?

USER: I need to cancel my recent reservation.

ASSISTANT: Ok, give me a minute, I will check reservation list and get back to you.

USER: Sure, take your time.

ASSISTANT: Sorry, we could not found any reservation to cancel.

USER: Ok, no issue.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your time.

ASSISTANT: Have a nice day ahead.