You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Can you please let me know how may I assist you?

USER: I need to cancel my reservation as my exams got cancelled. Can you assist me with that?

ASSISTANT: Sure, I am here to assist you with the ticket cancellation.

USER: Thank you for your assistance.

ASSISTANT: May I know the name with which you have reserved the previous ticket?

USER: Sure, I have reserved my flight ticket with my name Benjamin Miller.

ASSISTANT: Ok, please give me a minute. So that, I will check your ticket status in our portal and get back to you.

USER: Sure, I will wait for your rsponse.

ASSISTANT: I regret to inform you that, there is no active reservation on your name to cancel the ticket.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: You are welcome. Thank you for choosing us.