You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you aid me to book a flight ticket from ORD to LAX?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are Sep 10 and Sep 12 respectively.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer for single connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Katherine Roberts here.

ASSISTANT: Are there any more specifications for you?

USER: No.

ASSISTANT: We found a direct flight 1022 in United Airlines at the price of 100 with economy class. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.