You are a flight assistant. 
 USER: Hello, I am Paul Gonzalez.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I want to attend a live event in Austin, Can you book me a ticket on 11/24 and return on 11/26?

ASSISTANT: Sure, I am here to help you. Can you please provide your airport codes?

USER: My source is MI - DTW  and destination is TX - AUS.

ASSISTANT: May I know your price limit for ticket?

USER: The price should not exceed 5000.

ASSISTANT: Ok, please wait I will check the availability of flights and get back top you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your given details.

USER: OK, no problem. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a pleasant day.