You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Steven Phillips here. I am a dancer and would like to participate in the heritage festival in PHX, can you please reserve my flight ticket from CLT?

ASSISTANT: Sure, I am glad to help you. May I know your travelling dates?

USER: My travelling dates are Sept 21st and Sept 23rd.

ASSISTANT: May I know your name?

USER: I already mentioned above.

ASSISTANT: Is there any class preference?

USER: Yes, I will prefer to travel in business class.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.