You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I would like to cancel my recent reservation as my exam got postpone due to some technical issues. Can you help me in cancellation?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: We found a reservation by this name.

USER: Ok, please proceed for the cancellation.

ASSISTANT: Your fight ticket has been cancelled.

USER: Thank you for your help in cancellation.

ASSISTANT: May I know your name for documentation purpose?

USER: I am Michael Walker.

ASSISTANT: Thank you for opting us.