You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Please book me a flight ticket from DCA to SEA to meet my family.

ASSISTANT: Sure, may I know the planned travel dates?

USER: I have planned to travel on Sept 26th and return on Sept 28th.

ASSISTANT: Please provide me the specifications.

USER: I prefer connecting flight.

ASSISTANT: May I know the name?

USER: Gregory Davis.

ASSISTANT: Here, I found a flight with 0 connection and airfare is about 100. Shall I proceed with booking?

USER: Ok, please book it.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1015 in United Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.