You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Philips.

ASSISTANT: Anna, how can I assist you today?

USER: I would like to book a ticket to Atlanta, can you please help me out?

ASSISTANT: Sure, I am happy to help you. Can you please tell me your trip dates?

USER: I am travelling on these dates 12/27  and 12/29.

ASSISTANT: Can you tell me your airport codes?

USER: I am flying from CLT to ATL. Make sure my connection limit 0.

ASSISTANT: Sorry, there are no flights available on your given dates.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.