You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Jason Edwards. Can you please help me to find a flight in the business class from Oakland?

ASSISTANT: Sure, I am happy to help you in the ticket booking process. Could you send me your travelling dates?

USER: Thank you. I want to travel on the dates of Aug-09 and Aug-11.

ASSISTANT: Ok, May I know your genesis and terminus?

USER: The genesis and terminus airport codes are OAK and DFW.

ASSISTANT: Please wait for a minute.

USER: Ok, I will wait for your response but please make sure that the connection limit is 1.

ASSISTANT: Sorry to say that, there are no flight's available based on your journey details.

USER: Oh! It is sad to hear from your agency. Anyways thank you for your valuable time.

ASSISTANT: Thank you for consulting us. Have a nice day.

USER: You are welcome.