You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm Christopher Turner. Can you book a ticket from IL - ORD to DC - IAD?

ASSISTANT: OK Turner, can you provide me travelling dates?

USER: Sure, my travel dates are 05/28 and 05/30.

ASSISTANT: OK, can I know is there any price limit?

USER: Yes, my price should not exceed 1000 and also connection should be 1.

ASSISTANT: I had found a flight for you. The flight number is 1015 of delta airlines. Can I proceed with the booking?

USER: Yes, proceed with my booking.

ASSISTANT: OK. Have a safe journey!.

USER: Thank you.