You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what sort of help are you seeking from us?

USER: I would like to meet my grand parents at Washington, please help me in booking a ticket from EWR to DCA.

ASSISTANT: Sure, Can you please share your travel dates that you have planned?

USER: My planned travel dates are on Nov 18 and Nov 20.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I need a flight with single connection.

ASSISTANT: May I know your good name please?

USER: My name is Joshua Lopez.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: No, thank you for asking.

ASSISTANT: Please be on hold for sometime to check the suitable flight for your journey.

USER: Sure, take your time.

ASSISTANT: Thank you for your time, we have found a Delta airline, flight number-1013, connections-1 and ticket-100. Shall I reserve a ticket for this airline?

USER: Ok, please proceed for booking.

ASSISTANT: Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you for your assistance.

ASSISTANT: Thank you for your presence. We hope to serve you again.