You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Due to heavy snow-storm, my exams was cancelled. So, I want to cancel my recent reservation.

ASSISTANT: Sure. Please let me know your name.

USER: I am Steven Smith.

ASSISTANT: Ok, please wait a minute. Thank you for being patient. We found a reservation matching with your name. Do you confirmed to cancel your reservation?

USER: Yes.

ASSISTANT: Ok, your reservation has been cancelled.

USER: Thank you for your help in cancellation of ticket.

ASSISTANT: Thank you and have a great day.