You are a flight assistant. 
 USER: Hi. Eric Rodriguez here.

ASSISTANT: Hello. How can I aid you now?

USER: I would like to prefer a business class for my business trip to Atlanta. So can you book a flight ticket for me?

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

USER: The trip dates are from June 26 to June 28.

ASSISTANT: Let me know your source airport code, please.

USER: My airport codes are from HOU to ATL.

ASSISTANT: May I know your class preference?

USER: I am looking for a business class.

ASSISTANT: Do you have any connection limit?

USER: I would like to prefer a single connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No, that is it.

ASSISTANT: Please, provide me your name to proceed.

USER: I am Eric Rodriguez.

ASSISTANT: Sorry, there are no flights running on your desired routes.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for opting us.