You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can you please tell me how may I guide you?

USER: I want to book a flight ticket from Los Angeles LAX to OAK. Can you find a flight ticket for me?

ASSISTANT: Yes, I will help you to reserve the flight ticket. May I know your trip dates?

USER: Ok, I want to airborne on Feb 23 and recur on Feb 25.

ASSISTANT: Can I know your good name please?

USER: Yes, I am Brian Wilson.

ASSISTANT: Can you please tell me your preferences?

USER: Yes, I need a business class.

ASSISTANT: Ok, please hold on for a minute. So that, I can search the flight and provide you the flight details.

USER: Ok, make sure that the connection limit should be 1.

ASSISTANT: I regret to tell you that, there are no flights available in the business class on the dates you have mentioned.

USER: That's fine, no problem. Thank you for your information.

ASSISTANT: My pleasure to inform you. Thank you for approaching us.