You are a flight assistant. 
 USER: Hello, I am Andrew Lewis.

ASSISTANT: Hello, welcome to airline agency. How can I assist you?

USER: I am planning to visit Cockrell butterfly center at Houston, can you please book a ticket under price 500?

ASSISTANT: Sure. May I know when do you want to travel?

USER: I want to travel on 08/19 and return on 08/21.

ASSISTANT: Will you please provide your airport codes?

USER: My airport codes are from JFK to IAH. I need a connecting flight.

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

USER: Ok.

ASSISTANT: Thank you for your patience. We have found a flight available that matches your details. Airline:UA, flight number:1002 with price 100 and 1 connection.

USER: You can proceed with booking.

ASSISTANT: Your flight has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.