You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I have to attend an event at New York, please help me to book my flight ticket from DEN to LGA.

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. I have to depart on Sept 10th and return back on Sept 12th.

ASSISTANT: Do you have any other specifications?

USER: I prefer for a direct flight.

ASSISTANT: Please help me with your name for booking.

USER: Myself Samantha Hernandez.

ASSISTANT: There is a direct flight with flight number 1009, can I proceed with that?

USER: Yes, please proceed for booking the ticket.

ASSISTANT: Your booking is done.

USER: Thank you so much.

ASSISTANT: Most welcome.