You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Reserve a flight ticket for me that is from DCA to JFK.

ASSISTANT: Sure, may I know your preferable dates of travelling?

USER: My travelling dates for journey are 10/15 to 10/17.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 100 provided by AA airlines. Shall I proceed with this?

USER: You can book it.

ASSISTANT: Ok, may I know your name to book the flight ticket?

USER: Joseph Baker.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1010.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a great journey.