You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mary Hill.

ASSISTANT: How can I assist you today?

USER: I would like to reserve a flight ticket to visit SFO to attend a business meeting in the month of April, so I need an advance booking from DCA. Can you help me in that ticket booking?

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

USER: I would like to move on 04/22 and back on 04/24.

ASSISTANT: Please give me a moment.

USER: Sure, I will wait for your reply.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Yes, you can proceed with ticket booking.

ASSISTANT: Your ticket is booked. The flight number is 1017 and the airline is AA.

USER: Thank you.

ASSISTANT: Welcome, have a great day.

USER: Welcome.