You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need you to cancel my recent booking. Please help me.

ASSISTANT: Sure, I will help you to cancel your ticket. Can you please tell me your full name to check the ticket status?

USER: My name is Patrick Lopez.

ASSISTANT: Ok, please give me a minute.

USER: Sure, please take your time.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name to cancel.

USER: Thant's ok. Thanks for your efforts.

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