You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Alexander Perez. I wan to book a flight ticket to Denver to attend my sister's marriage, so I need a flight ticket.

ASSISTANT: Ok, provide me your journey points?

USER: My source code is New York, LGA and destination is DEN.

ASSISTANT:  May I know your travel dates?

USER: Travel dates are 08/14 and 08/16.

ASSISTANT: We found connecting flight Frontier with flight number 1008 and price is 300.

USER: You can proceed.

ASSISTANT:  Your booking is done.

USER: Thank you for booking.

ASSISTANT: Thank you for availing us.