You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Morning. How may I assist you?

USER: I am Pamela Lewis.

ASSISTANT: Ok Pamela.

USER: There is an exhibition in Space Center Houston about space related equipments, so I want to book ticket from New YOrk.

ASSISTANT: Sure, can I know your source and destination airport codes?

USER: My departure from New York-LGA airport is on 02/21.

ASSISTANT: Can I know your return details?

USER: I am returning from Houston-HOU airport on 02/23.

ASSISTANT: Please hold on for a moment, let me check.

USER: Ok.

ASSISTANT: I found a flight 1018 which has 1 connection and the price is 100, can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked with Delta airlines.

USER: Thank you for helping me out.

ASSISTANT: Thank you, have a safe flight.