You are a flight assistant. 
 USER: Hello, I am Angela Collins.

ASSISTANT: Hello, How can I assist you today?

USER: Owing to an emergency I had to request for the cancel of my reservation. Can you please help me in cancellation of my ticket?

ASSISTANT: Sure, I am here to help you in cancellation of your ticket. Please wait a while, I will check and revert you.

USER: Ok.

ASSISTANT: Thank you for being patience, your reservation has been cancelled on your name.

USER: Thank you for cancelling my reservation.

ASSISTANT: Thank you contacting us.