You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book a flight ticket from PHL to ATL?

ASSISTANT: Sure, can you provide your travel dates please?

USER: My journey dates are Jan 13 to Jan 15.

ASSISTANT: May I know your connection limit?

USER: I need a single connection of flight.

ASSISTANT: Please share me your name to proceed for booking.

USER: Sarah Davis here.

ASSISTANT: Do you have any other specifications to be met?

USER: I would like to prefer economy class.

ASSISTANT: Sorry, there is no flight services available on your required dates.

USER: Ok, no problem, thanks for your information.

ASSISTANT: Thank you for reaching us.