You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to reserve my ticket from JFK to ATL, can you please help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Ok, my planned dates of journey are from Apr, 18 to Apr, 20.

ASSISTANT: Sure, do you have any limits on number of connections?

USER: Yes, I want to fly in a connecting flight.

ASSISTANT: Do you have any specifications on your journey?

USER: Yes, I want to return at afternoon time.

ASSISTANT: May I know your name for the booking process?

USER: Sure, my name is Ashley Scott.

ASSISTANT: Sorry, no flights are not available on your required dates.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Welcome, thank you for reaching us.