You are a flight assistant. 
 USER: Hello, Paul Adams here.

ASSISTANT: Hello, how may I help you?

USER: I have a hospital visit to attend at Washington. Can you help me in booking a ticket?

ASSISTANT: Sure, may I know your airport codes please?

USER: The respective airport codes are ATL and IAD.

ASSISTANT: Please help me with your journey dates.

USER: I am planning my journey on dates 11/01 and 11/03.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your waiting, I found a flight for you in UA airlines with price 100. Can I proceed?

USER: Please proceed for booking the ticket.

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

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.