You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I have planned to book a plane ticket from EWR to IAD, can you assist me?

ASSISTANT:  Sure, may I know your travelling dates?

USER: My preferred dates are Apr 14th and Apr 16th.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Eric Carter.

ASSISTANT:  Do you need any specifications?

USER: I need to travel in a direct flight.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: There is a direct flight with the price 200 in Delta Airlines, can I proceed with the reservation?

USER: Proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1021.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching our service.