You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I want to cancel my flight ticket due to some health issues that doctor suggested not to travel, can you please cancel the flight ticket?

ASSISTANT: Sure, I am here to help you about it. Can you please provide your name for checking the reservation status?

USER: My name is John Rodriguez.

ASSISTANT: Sorry John, there is no reservation under your name to cancel.

USER: Ok, that's fine, thank you for your help.

ASSISTANT: My pleasure, thank you for reaching out here.