You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I support you today?

USER: I am Donna King here, I want to reserve my ticket from JFK to LGA, can you please help me?

ASSISTANT: Sure, I am happy to help you. Please let me know your travelling dates.

USER: Sure, my travelling dates are from Dec, 30 to Jan, 01.

ASSISTANT: Do you prefer any break in between journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Can you please let me know your specific depart and arrival timings?

USER: Ok, I need a return time at afternoon and need a normal-cost preference.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Thanks for providing details, no flights are available on your journey routes.

USER: Ok, not an issue. Thank you for your service.

ASSISTANT: Thank you for availing us.