You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Please book a ticket from CLT to AUS.

ASSISTANT: Sure, can I know the dates on which you are willing to travel?

USER: Departure is by Jan 26 and Jan 28 is return.

ASSISTANT: Do you have any limits on connections?

USER: I need connecting flight.

ASSISTANT: How much can you afford?

USER: Price limit 1000.

ASSISTANT: Which time you wish to travel on?

USER: I wish to travel afternoon.

ASSISTANT: Can I know your name?

USER: I am Sandra Miller.

ASSISTANT:  I found an economy class ticket in Frontier airlines with normal cost of 100 and it is a connecting flight. Can I book your ticket?

USER: Please book a flight.

ASSISTANT: Your ticket is booked with flight 1007.

USER: Thank you.

ASSISTANT: Do you want to know anything else? Thank you.