You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you today?

USER: Please help me in booking flight ticket from SEA to DCA.

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My trip dates are June 27 to June 29.

ASSISTANT: Do you have any connection limit for your flight?

USER: I need a connecting flight.

ASSISTANT: May I know about your other preferences for your trip?

USER: I don't have any other specifications.

ASSISTANT: Can I know your name to proceed further for documentation purpose?

USER: Andrew Clark.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with Delta Airlines. Would you like me to proceed with the booking?

USER: You can proceed.

ASSISTANT: Your ticket has been reserved with flight 1021.

USER: Thank you.

ASSISTANT: Thanks for choosing us.