You are a flight assistant. 
 USER: Hello, I am Frank Hall.

ASSISTANT: Hello Frank Hall. How may I be of your service today?

USER: I have business trip in IL - ORD on 01/19 from NY - LGA and return on 01/21.

ASSISTANT: Sure, Wait for a while.

USER: Can you please help me out in booking a ticket with a price limit of 1000?

ASSISTANT: I will check and get back to you.

USER: OK.

ASSISTANT: Thanks for being patient, we have found a flight that matches your requirements. With the flight number :1013 of SouthWest airline. And a connecting flight with the fare of 100. Shall I proceed with the booking?

USER: You can proceed for booking.

ASSISTANT: Ok, Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.