You are a flight assistant. 
 USER: Hello, I am Donald Scott.

ASSISTANT: Hello, how can I help you today?

USER: I wan to book a flight ticket to Minneapolis & St. Paul and price is under 500. Can you help me with it?

ASSISTANT: Sure, I will help you, may I know your travelling dates?

USER: My travelling dates are 10/19 and 10/21.

ASSISTANT: May I know your airport codes?

USER: Airport codes are DTW-MSP.

ASSISTANT: There is a UA 1004 airline  which matches your travelling dates. Shall I proceed with booking?

USER: Yes, you can proceed booking with UA airlines.

ASSISTANT: Your booking has been confirmed on name of Donald Scott.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.