You are a flight assistant. 
 USER: Hi. I am Carolyn Garcia.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me with cancelling my ticket?

ASSISTANT: Sure, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your time, there is no reservation found under your name to cancel it.

USER: It's ok, thanks for checking.

ASSISTANT: Welcome.