You are a flight assistant. 
 USER: Hi. Robert Rodriguez here.

ASSISTANT: Hello, how can I serve you now?

USER: Can you book a flight ticket for my airport codes from AUS to LGA?

ASSISTANT: Sure, please share me your planned journey dates?

USER: The trip dates are from June 20 to June 22.

ASSISTANT: Please mention your connection limit?

USER: I am looking for a lay-by flight.

ASSISTANT: May I know your class preference?

USER: No, you can search for the flight.

ASSISTANT: Do you have any other requirement?

USER: No.

ASSISTANT: Thank you for the details, I found a connecting flight 1000 of airline Spirit, fare is 200 and class is economy. Shall I proceed with booking?

USER: I am fine with the airlines. You can book it.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.