You are a flight assistant. 
 USER: Hello. I am Brandon Moore.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from AUS to ORD to meet my childhood friends. Could you please help me with booking a economy class?

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my travelling dates are June 5 and June 7.

ASSISTANT: May I know your other preferences?

USER: I need a halt in between the journey.

ASSISTANT: We found a flight on Frontier airline, flight number as 1015 with the fare of 100.

USER: You can proceed with booking.

ASSISTANT: You ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.