You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Lee.

ASSISTANT: How may I help you?

USER: I need to book a ticket to meet my uncle and aunt because there are not feeling fell from few days. Could you please help me in booking a ticket with fare of 500?

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

USER: My travelling dates are 11/29 and return on 12/01. My airport codes are IAD and BOS.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 200. Is it ok for you?

USER: You can confirm in this airline.

ASSISTANT: Ok, the ticket booking is done in 1022 flight in UA ailines.

USER: Thanks for your help.

ASSISTANT: You are welcome.