You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I'm Carolyn Hernandez. I am planning to attend convocation meeting at Washington, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please help me with your travelling dates?

USER: Sure, I would like to take off on 02/11 and return back on 02/13.

ASSISTANT: Ok, please provide me airport codes of your journey locations.

USER: My source airport code is MSP and the destination airport code is DCA.

ASSISTANT: Ok, please wait a moment.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: Yes, there is a flight in Frontier airlines with price 200, is it ok for you?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok Carolyn, I have confirmed a ticket with flight number 1018.

USER: Thank you for your help.

ASSISTANT: My pleasure. Thank you for choosing us, have a great journey.