You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me with booking a flight ticket from DCA to BOS?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My travelling dates are from Jan 18-20.

ASSISTANT: Do you need break in between your journey?

USER: I would be comfortable with single stop over.

ASSISTANT: Please let me know if you have any other specifications.

USER: I prefer to fly major airlines.

ASSISTANT: May I know your good name please?

USER: Charles Smith here.

ASSISTANT: Hawaiian airlines is providing a single connected flight with ticket fare of 200, shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1013, have a safe journey.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.