You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Can you please help me to book a ticket from LAS to DCA?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I want to start on Aug 9 and return on Aug 11.

ASSISTANT: Do you have any connection preference?

USER: I need a direct flight.

ASSISTANT: May I know the name on which you want to book the ticket?

USER: Charles Garcia here.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a direct flight available with UA airline, shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking is done with flight number 1010. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.