You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: This is Barbara Lewis. Can you help me to cancel my recent reservation?

ASSISTANT: Sure Lewis. Please hold on for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Lewis, no reservation found under your name.

USER: OK, that's fine.

ASSISTANT: Thank you for consulting us.

USER: Thank you for your support.