You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Joseph Williams from Houston. Can you please aid me to book a flight ticket from IAH to AUS?

ASSISTANT: Sure, on what dates you want me to make the reservation?

USER: I want to travel on Aug 13 and need to return on Aug 15.

ASSISTANT: Do you need a normal cost airline or low cost airline?

USER: I am comfortable with any airline.

ASSISTANT: Which class do you prefer?

USER: I am ok with any class.

ASSISTANT: At what time would you like to depart and return?

USER: I would like to return in the evening time.

ASSISTANT: How many connections do you need?

USER: I need a flight with single connection.

ASSISTANT: Ok, there is a Delta airline with flight number 1023 going on your way in the afternoon and the airfare is 100. Is that fine?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.