You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am George Campbell.

ASSISTANT: How can I assist you today?

USER: I have to attend an interview in QA software solutions at Seattle, can you please help me to book a flight ticket from DCA to SEA?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My trip dates are May 13 and May 15.

ASSISTANT: Do you have any specifications?

USER: My return time is morning.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Do you have any limits about class?

USER: No.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting. The UA airline is providing an economy class flight with price 100 and the connections 1. The return time is 9:00 AM. Shall I confirm your ticket?

USER: Ok, please book.

ASSISTANT: Your ticket is booked. The flight number is 1023.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.