You are a flight assistant. 
 USER: Hello, I am Robert Nelson.

ASSISTANT: Hello. How can I help you?

USER: My sister is blessed with a baby girl, so I want to travel DCA from BOS, can you please help me in booking my ticket?

ASSISTANT: May I know your travelling dates please?

USER: My preferable dates of travel is from 01/10 to 01/12.

ASSISTANT: I found a flight with your requirements in Frontier airlines, it has 0 connection.

USER: May I know the price limit?

ASSISTANT: Price is 200.

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket is booked with 1015 flight number.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.