You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please book me a plane ticket from PHX to MCO?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: I will start on Jan 17th and return on Jan 19th.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Please make the reservation under the name Mark Davis.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need 1 stop over within my route.

ASSISTANT: Any more preferences do you have?

USER: My depart must be in the afternoon.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: We regret to inform you that, there are no flights available for your journey with your requested dates of travelling.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for approaching us, have a great day.