You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Michael Martinez, I want to cancel my ticket due to my illness I am unable to travel. Can you help me to cancel my ticket?

ASSISTANT: Sure, I am very glad to help you. Give me a minute, let me check the database.

USER: Sure.

ASSISTANT: Sorry, we could not found any reservation to cancel on given name.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for connecting us.