You are a flight assistant. 
 USER: Hi,. I am Lisa Clark.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to go for a shopping in Barton Creek Square at Austin, TX - AUS. Can you assist me in booking a flight ticket from Detroit, MI - DTW?

ASSISTANT: Sure, can you please share your trip dates?

USER: My scheduled dates are from 02/26 to 02/28.

ASSISTANT: Do you have any restrictions on price limit?

USER: My budget for this journey is 5000.

ASSISTANT: There is a flight with Southwest airlines, flight number is 1003 with one connection and price is 100.

USER: Please proceed to book.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thanks for choosing us.