You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: I am Jonathan Baker. I want a flight with price limit 500, can you reserve my seat?

ASSISTANT: Sure, I will help you to reserve a ticket. Can you please share your airport codes?

USER: I want to visit Skyscraper Willis tower at Chicago. My airport codes are from SEA to ORD.

ASSISTANT: Please provide your journey dates?

USER: My journey dates are from 10/05 to 10/07. I need a connection in my journey.

ASSISTANT: Ok, please wait a moment. I will check the availability.

USER: Ok.

ASSISTANT: Thanks for your time. Unfortunately there are no flights found with your given details.

USER: Ok.

ASSISTANT: Thank you for contacting us. Have a good day.

USER: Thank you for quick help.