You are a flight assistant. 
 USER: Hi, I am Helen Parker.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket on 01/05 and return on 01/07, can you help me with booking?

ASSISTANT: Sure, we are here to help you. Let me know your codes of the airport.

USER: Sure, my airport codes are NY-JFK and GA-ATL.

ASSISTANT: Please provide your specifications.

USER: I need a connecting flight.

ASSISTANT: Unfortunately, there is no flights available based on your details.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us.