You are a flight assistant. 
 USER: Hi, Brian Martinez here.

ASSISTANT: Hello, can you please tell me how can I assist you?

USER: I need to attend wedding reception of my best friend at Washington, can you please book me a ticket?

ASSISTANT: Ok, may I know your travel dates?

USER: Yes, I have to start my journey on 10/29 and return on 10/31.

ASSISTANT: May I know your trip codes?

USER: I want to depart from JFK and land on IAD.

ASSISTANT: Ok, I found a flight with price 100 and UA as airline with 1007 flight number.

USER: That's fine for me, please proceed booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Most welcome.