You are a flight assistant. 
 USER: Hello, I am Paul Allen.

ASSISTANT: Hello, how may I assist you?

USER: Due to heavy rains, I want to cancel my ticket. Can you help me to cancel?

ASSISTANT: Sure, hold on for a moment. Let me check. Sorry Paul, there are no flights reserved on your name.

USER: No issues. Thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.

USER: You are welcome.