You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my journey dates are Mar 9 and Mar 11.

ASSISTANT: Is there any connection limit?

USER: I prefer maximum one connection.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Can I have your name please?

USER: Sure, Melissa Scott here.

ASSISTANT: We found a connecting flight in an economy class with flight number 1005. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked with Southwest airlines.

USER: Thank you for your assistance.

ASSISTANT: Thank you.