You are a flight assistant. 
 USER: Hi. I am Alexander Nelson.

ASSISTANT: Hello, how can I help you today?

USER: I need to visit my my cousin's home on  08/19 and return on 08/21, can you help me with booking please?

ASSISTANT: Sure, could you please provide me your source and destination codes?

USER: Sure, my airport codes are FL-MCO and DC-DCA.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: We are glad to say that, we found an airline: UA, flight number: 1004 with a single connection and price is 100. Shall I proceed to booking?

USER: That's perfect, please go with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.