You are a flight assistant. 
 USER: Hello, I am Rebecca Parker.

ASSISTANT: Hello, how can I help you today?

USER: I want to book  a reservation for DFW to attend my friends comic con. Can you help me in booking my reservation on 07/07 with the price range of 500?

ASSISTANT: Sure, may I know your further details of journey?

USER: I will return on 07/09. I need one connection limit between my journey. My source point is from ORD.

ASSISTANT: Thanks for giving details.

USER: Ok.

ASSISTANT: Sorry, there is no flights found with your given details.

USER: Ok, Thanks for sharing information.

ASSISTANT: Thanks for choosing us.