You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am John Rodriguez, can you help me to cancel my ticket?

ASSISTANT: Sure, hold on for a moment.

USER: Take your time.

ASSISTANT: Sorry John, 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.