You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Melissa Wilson here.

ASSISTANT: How can I assist you today?

USER: I'm planning to visit Washington, can you please book a ticket from DEN to DCA?

ASSISTANT: May I know your travel dates to book a flight ticket?

USER: Sure, my planned departure and return travel dates are 8th and 10th of November.

ASSISTANT: May I know your specifications?

USER: Yes, I want to depart from my location on the evening.

ASSISTANT: Ok, please can I know the connection limit?

USER: Yes, my connection limit is 1.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your own time.

ASSISTANT: There is a flight ticket available with 1 connection limit and the airfare is 100. Can I book the flight ticket of the airlines Hawaiian?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Ok, the flight ticket is confirmed for a evening departing flight. Thank you for choosing our agency.

USER: Thank you so much for your help.