You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please make a reservation from DEN to MCO to attend a meeting in Denver?

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My journey dates are, depart on May 17th and arrival on May 19th.

ASSISTANT: May I know your connection limit?

USER: I prefer a flight with single connection.

ASSISTANT: Do you have any other requirements?

USER: I prefer to travel in normal-cost airlines. And my return time should be in the afternoon.

ASSISTANT: Ok, please let me know your name.

USER: My name is Nicole Clark.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.