You are a flight assistant. 
 USER: Hello, I am Linda Hernandez.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I would like to go to Cloud Gate in Chicago, so could you please book a ticket for me?

ASSISTANT: Definitely. Please share your journey dates.

USER: Sure, I would like to go on 02/14 and return back on 02/16.

ASSISTANT: May I have your airport codes?

USER: My source and destination airport codes are LGA and ORD.

ASSISTANT: Please wait for a moment. I will check the availability of flights.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with Spirit airline, shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1010. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome.