You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me to book my ticket from IAD to EWR?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are June 4 and June 6 respectively.

ASSISTANT: May I know your name please?

USER: Gregory Walker here.

ASSISTANT: Do you have any preferences?

USER: I prefer for connecting flight.

ASSISTANT: We found an airline: Frontier, flight number: 1004 and price is 100 with one connection. Shall I proceed to book?

USER: Please book the ticket.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.