You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help You?

USER: I want to cancel my ticket as I am sick, could you help me out?

ASSISTANT: Sure, I will be helping out.

USER: My name is Samuel Thomas.

ASSISTANT: Sorry Samuel, there are no flights reserved under your name.

USER: It's ok, thank you.

ASSISTANT: Your are welcome.