You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your service?

USER: I want to book a flight ticket with the name Jerry Gonzalez and make sure that the price limit should be 1000. Can you help with this?

ASSISTANT: Sure, we are here to help you. May I know where you want to travel?

USER: I want to travel to Las Vegas, NV-LAS to participate in auto expo.

ASSISTANT: Ok, may I know your preferable dates and your origin?

USER: My journey dates would be on 04/07 to 04/09 and my origin airport is IL-ORD.

ASSISTANT: Thank you. Please hold on I will check the availability and get back to you.

USER: Ok.

ASSISTANT: Thanks for being patient. Unfortunately there are no flights available at this moment according to your request.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for opting us.