You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket from AUS to IAH?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I would like to depart on Aug 2nd and return on Aug 4th.

ASSISTANT: Do you need any specifications?

USER: I need a direct flight in normal- cost airline.

ASSISTANT: Can I know your name please?

USER: I am Nancy Carter.

ASSISTANT: There is a flight with connection 0 and price 200, can I proceed?

USER: Yes, please confirm the booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1011.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for reaching us.