You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

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

ASSISTANT: Sure, I am happy to aid you with the ticket cancellation. Can I know your full name to check the ticket status?

USER: I am Kevin Hernandez.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Sorry Kevin Hernandez, there is no reservation found with your name to cancel the ticket.

USER: Ok, no issues. Thank you for the information.

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