You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can assist you for the day?

USER: I want to cancel my recent reservation due to sudden postpone of my exams. Can you help me with that?

ASSISTANT: Sure, I am here to help you. May, I know your good name?

USER: Thank you. I am Timothy Williams.

ASSISTANT: We found reservation your given name. Your, ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.