You are a flight assistant. 
 USER: Hello, I am Emily Thomas.

ASSISTANT: Hello, how may I aid you?

USER: I want to visit NASCAR hall of fame to know about different types of cars. Can you please book a ticket with a price limit of 200? I need a halt in between my journey.

ASSISTANT: Can you please provide me your departure and return date?

USER: I would prefer to depart on 03/16 and return on 03/18.

ASSISTANT: Kindly, mention your source and landing points?

USER: My boarding point is CLT and landing point is ORD.

ASSISTANT: Please wait for a while, I will check the status and get back to you.

USER: Ok.

ASSISTANT: Sorry, no flight found on your given details. Thank you.

USER: Ok, no issue.