You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best assist you now?

USER: I need to book a flight ticket from EWR to DCA, can you help me in booking a flight ticket?

ASSISTANT: Sure, I am gleeful to assist you. When are you planning to go and return back from your journey?

USER: Sure, my journey dates are Apr 28 and Apr 30.

ASSISTANT: Do you need any layover in between journey?

USER: I prefer maximum one connection.

ASSISTANT: May I know your good name please?

USER: Sure, Donald Thompson here.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I want to fly in a well company airlines.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for your time, we have found a Delta airline, flight number-1002, connections-1 and ticket-100. Would you like me to book the ticket?

USER: Yes, you can.

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

USER: Thank you for your kind service.

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