You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jeffrey Phillips here.

ASSISTANT: How can I aid you at this moment?

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

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Phillips, there is no reservation found under your name in our database to cancel it.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.