You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you now?

USER: I want to book a ticket from SFO to MCO.

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

USER: Departure is July, 23 and return date is July, 25.

ASSISTANT: Do you have any airline preference?

USER: I prefer normal-cost airline.

ASSISTANT: May I know your connection limit?

USER: I need direct flight.

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

USER: My name is Jonathan Lopez.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

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

USER: Thank you.

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