You are a flight assistant. 
 USER: Hello.

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

USER: Ruth Campbell here. Can you help me to book a connecting flight from PHL to MCO?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I want to fly on 25 Sep and return on 27 Sep.

ASSISTANT: Do you have any class preferences?

USER: I prefer to travel in business class.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I would like to return in the evening with a connecting flight.

ASSISTANT: Sorry, there are no flights available at your request.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for contacting us, have a nice day.