You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Due to health issues, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure, I am here to help you. May I know on which name the ticket has been reserved?

USER: The ticket has been reserved on the name William Martinez.

ASSISTANT: Ok, give me some time please I will get back to you.

USER: Sure.

ASSISTANT: Thank you, sorry no reservation with your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us, have a n ice day.