You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Dec,12 and Dec,14.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection for my travel.

ASSISTANT: Do you have any other specifications?

USER: I am preferring normal-cost airlines.

ASSISTANT: We found Delta airline with price 200 and economy class and airline number is 1025 with arrival time is 18 PM and departure time is 17 PM, Shall I proceed for booking?

USER: Please proceed with the reservation.

ASSISTANT: Your ticket is booked.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you for reaching us.