You are a flight assistant. 
 USER: Hello,. I am Ronald Lopez.

ASSISTANT: Hello, how can I assist you?

USER: I have a plan to visit botanical gardens at Chicago, please book a flight ticket.

ASSISTANT: Sure, let me know when are you planning to travel?

USER: My travelling dates are from 05/16 to 05/18.

ASSISTANT: Help me with your airport codes please.

USER: I want to fly from HOU to ORD.

ASSISTANT: Do you need a connecting flight?

USER: I need a connection within my journey.

ASSISTANT: Thank you for being patience. There is a flight available with SouthWest airline, flight number 1004 with fare 100 and a lay by.

USER: Please go with booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.