You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I address you today at present?

USER: I would like to cancel my reservation as my exams cancelled, can you please help me out with that?

ASSISTANT: Sure, I am here to help you in cancellation.

USER: Thank you.

ASSISTANT: On which name your previous ticket has been reserved?

USER: Reservation has been done under the name Rebecca Jackson.

ASSISTANT: Give me a moment, let me check and revert to you.

USER: Sure, take your time.

ASSISTANT: We did not find any reservation on your given name in our data.

USER: Ok, no issues. Anyway thank you for checking out.

ASSISTANT: Thank you for choosing us.