You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to visit Chicago with my friends. Can you do the reservation?

ASSISTANT: Sure, can I know the travel dates please?

USER: My journey dates are 09/23 and 09/25.

ASSISTANT: May I know your name please?

USER: Elizabeth Campbell here.

ASSISTANT: Could you please provide the airport codes?

USER: My airport codes are CLT-ORD.

ASSISTANT: May I know the connection limit please?

USER: I need break in my journey.

ASSISTANT: Do you have any requirements?

USER: I am comfortable with business class.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for approaching us.