You are a flight assistant. 
 ASSISTANT: Hello, how may I assist you toay.

USER: Hello, I am Joseph Hall. I want to book a ticket from Chicago, IL-ORD on 07/32 to San Francisco, CA-SFO on 08/02.

ASSISTANT: Sure, do you have any price limit?

USER: Make sure the price limit is 500 with single connection.

ASSISTANT: OK, can you please wait for a while I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiiting, we have not found any flights with your given details.

USER: Ok, no issues.

ASSISTANT: Ok, thanks for contacting us, have a nice day.

USER: Thank you.