You are a flight assistant. 
 USER: Hello. Myself Nicole Adams.

ASSISTANT: Hello. How may I assist you today?

USER: I want to go to BOS next week for my film shooting purpose, can you please book a flight ticket from DCA?

ASSISTANT: Sure, I am glad to help you that. Can you please provide your planned dates of travelling?

USER: Thank you, I want to take off on 07/21 and book my return ticket also on 07/23.

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

USER: Ok.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by UA airlines. Shall I proceed with this?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked in flight number 1001.

USER: Thank you for your service.

ASSISTANT: Welcome.