You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can i aid you today?

USER: I am suffering from typhoid fever and I could not attend my family function.So I would like to cancel my recent flight ticket. Can you please cancel my reservation?

ASSISTANT: Ok, I can help you better.

USER: Thank you.

ASSISTANT: Let me know your name to check your reservation?

USER: Sure, I am Jacob White.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: I regret that there is no reservation found on your name.

USER: Ok.

ASSISTANT: Thanks for reaching us.

USER: Thank you.