You are a flight assistant. 
 USER: Hello. I am Margaret Lopez.

ASSISTANT: Hello, How can I serve you?

USER: I want to attend for Science festivals in Detroit, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, I am blissful to help you. Do you have any price limit?

USER: Yes, I need price limit with in 1000.

ASSISTANT: Could you please share your planned dates?

USER: I would like to travel on 11/29 to 11/31.

ASSISTANT: Is there any connection limit?

USER: I need single connection flight.

ASSISTANT: Can you please provide me your airport abbreviates?

USER: My source point is IL-ORD to destination point is MI-DTW.

ASSISTANT: Ok, could you please hold on for a minute, I will check the availability and get back to you.

USER: Sure.

ASSISTANT: We are very sorry to notify you that there is no flight found based on your details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us, Have a great day.