You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me in booking my flight ticket from LAS to SFO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates will be Sep 12th to Sep 14th.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any requirements?

USER: My return time should be in the afternoon with a business class.

ASSISTANT: May I know your name?

USER: I am Pamela Anderson.

ASSISTANT: Sorry, there is no flight in business as per your requests.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.