You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me out with cancelling my previous reservation? My health is not well.

ASSISTANT: Sure, I will help you with the ticket cancellation.

USER: Thank you.

ASSISTANT: May I know your name to check the ticket status?

USER: My name is Samuel Lopez.

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

USER: Oh! That's fine, thank you for checking.

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

USER: Welcome.