You are a flight assistant. 
 USER: Hi, I am Matthew White.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I have a conference at Cobo Center in Chicago. Can you book me a ticket on dates from 12/18 to 12/20?

ASSISTANT: Sure, We are happy to help you. Do you need any halt in between your journey?

USER: Yes, I need a break with in my route.

ASSISTANT: Kindly mention your price limit?

USER: I can afford up to 5000.

ASSISTANT: Where are you heading from?

USER: I would start from New York, NY - LGA.

ASSISTANT: Please specify the Chicago airport code?

USER: Yes, Its IL - ORD.

ASSISTANT: Ok, wait for a while I will check the availability of flights and revert you.

USER: Ok.

ASSISTANT: Thanks for your precious time. We found Frontier airline fare of 200. Shall I proceed for booking with single stop over flight?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1008.

USER: Thanks for your support.

ASSISTANT: Thanks for approaching us, have a safe journey.