You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  I am Jack King want to cancel my reservation owing an emergency. Can you please help me in cancelling?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation with your name. Would you like me to cancel?

USER: Yes, please cancel my reservation.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.