You are a flight assistant. 
 USER: Hello. I am Stephanie Perez.

ASSISTANT: Hello, how may I assist you today?

USER:  I need to book a flight ticket to Charlotte, CLT  to attend an environment meeting to save the trees and stop pollution. Can you help me in booking a flight ticket with fare 1000?

ASSISTANT: Sure, may I know your boarding point?

USER: My boarding airport code is Washington, IAD.

ASSISTANT: Ok, when would you like to depart and return?

USER: I would like to depart on 09/25 and my return will be on 09/27.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a UA airline, flight number: 1017, price: 100 with one connection.

USER: Please, proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.