You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am looking to cancel my recent ticket because my planned trip got cancelled. Can you please help me to cancel the ticket?

ASSISTANT: May I know your name?

USER: My name is Katherine Thompson.

ASSISTANT: Please give me a minute, I will check the status of your previous reservation.

USER: Ok, take your time. I will wait for your response.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: It's ok, not an issue with  that. Anyways thank you for your time.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Most welcome.