You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Sharon Roberts here. I want to book a flight ticket from ORD to LAX. Can you help me in that?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are Oct 19 to Oct 21.

ASSISTANT: Do you have any other preferences?

USER: My return should be in the afternoon.

ASSISTANT: We have an economy class, connecting flight operated by American Airlines with a fare of 100. Is it ok for you?

USER: You can proceed.

ASSISTANT: I have booked your ticket in flight-1000. It departs at 6:00 AM Oct 19 and arrives at 19:00 PM Oct 21.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.