You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book the flight ticket from ORD to IAD?

ASSISTANT: Can I know your travel dates?

USER: I want to depart on 04/21 and return on 04/23.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: I found a flight-1000 with 1 connection for you.

USER: Sure, you can proceed for booking the ticket on the name of Shirley Allen.

ASSISTANT: your ticket is booked with Delta airlines. Thank you so much.

USER: Thank you very much.