You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Moore.

ASSISTANT: How can I assist you?

USER: I am planning to visit San Francisco to meet my father, can you please help me in booking a flight ticket from DCA to SFO?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are Oct 15 and Oct 16.

ASSISTANT: Do you have any other preference?

USER: I need a connecting flight.

ASSISTANT: Here is a connecting flight with fare 200 and 1005 as flight number in AA airline. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank  you for reaching us.