You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my ticket as I am sick.

ASSISTANT: May I know your name to proceed further for cancellation process?

USER: Emily Lee here.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: No reservation found as per your preferences at the moment in our database.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.