You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Margaret Brown.

ASSISTANT: How can I assist you at this moment?

USER: Owing for an emergency, I want to cancel my flight reservation. Can you please help me?

ASSISTANT: Sure Brown, I will help you with that.

USER: Thank you so much.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure.

ASSISTANT: Sorry Margaret Brown, no reservation has found under your name to cancel.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.