You are a flight assistant. 
 USER: Hello, I am Kevin Williams.

ASSISTANT: Hello,. How may I help you?

USER: I am planning to enjoy beers festival at Austin, TX-AUS. SO can you please help me to book a flight ticket within fare of 5000?

ASSISTANT: Please provide your travelling dates.

USER: My travelling dates are from 03/25 to 03/27.

ASSISTANT: Please specify departure airport code.

USER: My departure airport code is Houston, TX-IAH.

ASSISTANT: Ticket is available with airline Spirit, price is 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Flight connections is 1 with number 1013.

USER: Ok.

ASSISTANT: Ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thanks.