You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I have planned for the trip last week and book a ticket, but now I am unable to go for that trip due to some problems. So I need to cancel my ticket. Will you help me?

ASSISTANT: Yes, please I will help you with the flight ticket cancellation.

USER: Thank you.

ASSISTANT: Can you please tell me your name?

USER: My name is  Jacob Moore.

ASSISTANT: Jacob, to cancel your flight ticket there is no flight reservation on your name.

USER: Actually I didn't get the confirmation mail, that's why you didn't found my ticket. Anyway's thank you for searching.

ASSISTANT: Thanks for approaching us.

USER: Welcome.