You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Christopher Lewis here. I need to cancel my existing reservation, as  my planned trip with my friends got cancelled. Can you please help me out?

ASSISTANT: Sure, I will help you.

USER: Thank you for considering my request.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting. we found a reservation on your name, Shall I proceed to cancel?

USER: Yes, please proceed with that reservation cancel.

ASSISTANT: Your reservation has been cancelled successfully.

USER: Thank you for your help in cancelling my existing reservation .

ASSISTANT: Thank you.