You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my ticket reservation due to some health issues, can you help me?

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

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Ronald Baker.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no reservations found.

USER: It's alright, no problem with that one, anyways, thank you for your help.

ASSISTANT: Thank you for reaching us.