You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I am Cynthia Smith, can you help me to book a flight with 1 connection from JFK?

ASSISTANT: Sure, could you please share your landing airport code?

USER: Please book a economy class ticket to ORD for this trip.

ASSISTANT: Could I have your journey dates, please?

USER: My travelling dates are Dec 16 and 18.

ASSISTANT: Is there any other preferences, do you have?

USER: Yes, I want to return at afternoon.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, no flights are available on your route as per your given requirements.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.