You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I need to travel Washington DC, can you please reserve flight ticket from SEA and DCA?

ASSISTANT: Sure, may I know your class preference?

USER: I am ok with any flight service which is available.

ASSISTANT: Ok, on which dates would you like to travel?

USER: My travelling dates are July,23 and July,25.

ASSISTANT: Ok, do you need any lay by in between the journey?

USER: Please provide me a connecting flight for my journey.

ASSISTANT: May I know your good name please?

USER: Myself Dennis Walker.

ASSISTANT: We found a Delta Airline with fare of 900 and a break in between the journey matches your schedule. Your flight has been confirmed with flight number 1021.

USER: Please proceed with the reservation.

ASSISTANT: Your ticket has been confirmed. Thank you for reaching us.