You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need you to book a flight ticket from AUS to HOU. Please help me.

ASSISTANT: Sure, help me with the trip dates?

USER: July 22 and 24 are my planned travelling dates.

ASSISTANT: May I know your name plesae?

USER: Richard Martin here.

ASSISTANT: Do you have any preferences?

USER: I wish to depart in the afternoon.

ASSISTANT: We found an airline: Southwest, flight number: 1000 and price is 100 with one connection which departs in the afternoon. Shall I proceed to book?

USER: Please book the ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.