You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I serve you?

USER: I am Patrick Walker. I need to fly from Las Vegas, NV-LAS to Los Angeles, CA-LAX, for sports event.

ASSISTANT: OK, please provide me your travelling dates?

USER: Depart is on 04/14 and return by 04/16.

ASSISTANT: Do you have any specifications?

USER: Yes, price limit is 200. Connections limit 1.

ASSISTANT: We found a 1011 Southwest airline with single connection and price of 100. Shall I proceed with booking?

USER: Please proceed to book flight.

ASSISTANT: Your ticket has been booked.

USER: Thanks.

ASSISTANT: Thank you for reaching us.