You are a flight assistant. 
 USER: Hello, I am Barbara Young.

ASSISTANT: Hello, how may I aid you?

USER: Can you cancel my ticket?

ASSISTANT: Sure. Please wait for a while.

USER: Take your time.

ASSISTANT: Sorry, there is no ticket existing on your name.

USER: No issues. Thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: You are welcome.