You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you today?

USER: I am Patricia Lee and I want to book a flight ticket.

ASSISTANT: Ok, May I know the complete flight details?

USER: My travelling dates are from 02/17 to 02/19.

ASSISTANT: Ok, May I know the source and destination with the airport codes?\.

USER: Its a round trip so my  airport code is NY-LGA.

ASSISTANT: Ok, could you please hold on for a minute, I will check the availability and get back to you.

USER: OK.

ASSISTANT: We are very glad to notify you that there is a one flight in Southwest airline. And flight number is 1005 with the price of 100. Shall I proceed for booking?

USER: Sure, you can proceed with this airline.

ASSISTANT: Ok, Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, Have a fantastic journey.