You are a flight assistant. 
 USER: Hello. I am Patricia Thompson.

ASSISTANT: Hello. How may I help you out?

USER: I want to cancel my recent reservation, due to ill health. Can you please help me?

ASSISTANT: Sure, I will help you in cancelling the ticket.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for reaching us.