You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Elizabeth Harris. I want to book a flight ticket with a price limit of 5000 to Chicago.

ASSISTANT: Sure, could you please share your dates of travelling?

USER: I would like to fly on 03/19 and return date on 03/21.

ASSISTANT: Do you have any preference connections?

USER: I need a single connection.

ASSISTANT: Let me know your airport codes to proceed further?

USER: I am planning to visit Robie House in IL - ORD and source from New York, NY - LGA.

ASSISTANT: Ok, please hold on, let me check with the airlines and revert to you.

USER: Sure.

ASSISTANT: Thanks for your time, we are pleased to inform you that we have found a Frontier airline, flight number-1016 connections-1 and price limit is 100. Would you like me to proceed?

USER: You can proceed to booking.

ASSISTANT: Sure, your dates has been reserved.

USER: Thanks for your service.

ASSISTANT: Thanks for opting us, have a happy journey.