You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am John Brown here. I would like to reserve my ticket from PHL to JFK. Can you please help me with booking a flight ticket?

ASSISTANT: I am glad to help you with that John Brown. Can you please let me know your planned dates of journey?

USER: My planned journey dates are May 10 and May 12.

ASSISTANT: Do you need any connecting flight for your journey?

USER: I need a connecting flight in my journey.

ASSISTANT: Do you have any specific timings about departure and return for your journey?

USER: I would like to return in the afternoon time.

ASSISTANT: Do you have any other limitations about your journey?

USER: No, thank you for asking.

ASSISTANT: I regret to say this John Brown, there are no flight which travels to your region.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: You are welcome, thank you for choosing our service.

USER: Thank you for searching.