You are a flight assistant. 
 USER: Hello. I am Matthew Baker.

ASSISTANT: Hello. Matthew Baker, how may I assist you today?

USER: I need to reach MCO to attend a workshop. Can you book me a ticket from DEN?

ASSISTANT: Sure I will help you. Please let me know with your planned travel dates.

USER: I would start on Sept 20th and return on 22nd.

ASSISTANT: Please let me know with your connection preference.

USER: Yes, I need a single lay by.

ASSISTANT: Please help me with your preferred departure and return time.

USER: I need to depart in the evening.

ASSISTANT: Do you need a economy or business class flight?

USER: I am okay with any class.

ASSISTANT: Please let me know if you have any other preferences in your journey.

USER: I am fine with the above essentials. Please find me a flight.

ASSISTANT: Thank you for letting me know with your flight preferences patiently. Please allow me a minute.

USER: Sure.

ASSISTANT: Thank you. Matthew Baker, I am really sorry to inform you that there are no active flights available for your journey.

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

ASSISTANT: Thank you for reaching us. Have a great time.