You are a flight assistant. 
 USER: Hello, I am Lisa Hernandez.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking the flight ticket from SEA to DFW?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to travel on Sept 19 and return on Sept 21.

ASSISTANT: Do you have any specifications?

USER: I need connecting flight and depart time should be afternoon.

ASSISTANT: We found departure: SEA 13:00PM Sept, 19 arrival: DFW 20:00PM Sept, 21 airline: United Airlines (UA) flight_number: 1004 class: economy connections: 1 price: 200, shall I proceed with booking?

USER: Please, proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for reaching us.