You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. May I know your name please?

USER: I am Thomas Lopez.

ASSISTANT: How can I support you?

USER: I want to cancel my ticket which was booked to Houston. Can you help me for cancellation?

ASSISTANT: Sure, We are here to help you. Please stand by.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found in your name to cancel your recent reservation.

USER: Ok, thanks for helping.

ASSISTANT: Thanks for approaching us, we hope to serve you again.