You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Welcome to Tour Agency.

USER: I am Matthew Martinez.

ASSISTANT: How can I help you?

USER: I need to cancel my last reservation. Can you please help me out?

ASSISTANT: Sure, I am glad to help you in cancelling the reservation. Please wait for a while.

USER: OK.

ASSISTANT: There is a reservation on your name, can I proceed with cancelling?

USER: Ya please cancel it.

ASSISTANT: Your cancelling has been done.

USER: Thank you.

ASSISTANT: Thank you for approaching us.