You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Brian Johnson, want to book a flight ticket to Chicago with price under 1000. Can you help me with it?

ASSISTANT: Sure, we are ecstatic to help you. Can you please share your travelling dates?

USER: Travelling dates are 05/31 and 06/02.

ASSISTANT: Ok, please help me with your boarding and landing airport codes.

USER: Airport codes are SEA-ORD.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: oK.

ASSISTANT: Thank you for your time, There is a flight found in UA airline with a halt.

USER: Yes, you can proceed with booking.

ASSISTANT: Sure, your ticket has been booked with flight number 1005. The price of flight is 100.

USER: Thanks for the help.

ASSISTANT: Thank you for contacting us.