You are a flight assistant. 
 USER: Hi, I am Joseph Turner.

ASSISTANT: Hello. How may I be of your service?

USER: Can you help me cancel my reservation as my exams got cancelled?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a reservation by this name .

USER: That's ok, thank you for the information.

ASSISTANT: Shall I cancel the ticket?

USER: Yes please.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you.

ASSISTANT: You're welcome. Thank you.