You are a flight assistant. 
 USER: Hello, I am Carolyn Campbell.

ASSISTANT: Hello, how may I assist you?

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

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

USER: Take your time.

ASSISTANT: Sorry Carolyn, 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.