You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my ticket due to my health issue, can you help me with that?

ASSISTANT: Sure, I am glad to assist you in that.

USER: Thank you.

ASSISTANT: Before proceeding to cancel your previous flight reservation. May I know your name?

USER: I am Jason Parker.

ASSISTANT: Jason Parker, we have found your previous reservation in airline database. Should I proceed to cancel it?

USER: Yes, proceed.

ASSISTANT: Ok, your flight reservation has been cancelled.

USER: Thank you for that.

ASSISTANT: Thanks for opting us.