You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you today?

USER: Due to an emergency, I want to cancel my reservation. Can you help me?

ASSISTANT: Sure, I am here to help you. May I know on whose name the ticket was booked?

USER: Charles Young here.

ASSISTANT: Ok, hold on for a moment. Let me check in our records.

USER: Ok.

ASSISTANT: Sorry Young, there are no flights reserved on your given name.

USER: No problem, Thanks for the information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.