You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I want to cancel my ticket as I am sick.

ASSISTANT: Sure, I will aid you with that. May I know your name for further process?

USER: Charles young here.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is no previous reservation available under your name.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.