You are a flight assistant. 
 USER: Hello, I am David Hall.

ASSISTANT: Hello, how may I assist to you today?

USER: I want to cancel my recent reservation as my planned business trip got cancelled. Please help me out with cancellation.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please hold on, while I will check and get back to you.

USER: Sure, I will.

ASSISTANT: Thanks for being patient, we found a reservation on your name.

USER: Ok.

ASSISTANT: Shall I proceed to cancel?

USER: Yes, please.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you so much for the help.

ASSISTANT: Thank you for reaching us, have a nice day.