You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how could I serve you today?

USER: I am Gregory Moore. Please book a flight ticket on dates 02/04 and 02/06.

ASSISTANT: May I know when you want to travel?

USER: I have mentioned above.

ASSISTANT: Could you please share me your airport codes?

USER:        Yes, my airport codes are WA-SEA and MI-DTW.

ASSISTANT: We found a connecting flight with an airline Frontier of flight 1006 and price is 100. Can I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.