You are a flight assistant. 
 USER: Hello, I am Pamela Lewis.

ASSISTANT: Hello, how may I assist you?

USER: Can you cancel my ticket? I have an important work on the those dates.

ASSISTANT: Sure, hold on for a moment. Let me check.

USER: Take your time.

ASSISTANT: Sorry Lewis, there are no flights reserved on your name.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.

USER: Welcome.