You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samantha Walker.

ASSISTANT: How may I assist you?

USER: I would like to attend my nephew's first birthday in BOS, can you please book a flight ticket from DCA?

ASSISTANT: Sure, may I know your trip dates?

USER: I prefer to travel on 11/20 and 11/22.

ASSISTANT: There is a flight for you with 1019 in AA airline as per your request.

USER: Ok, please proceed to confirm.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.