You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you today?

USER: Could you please check the flight availability in business class?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: My journey dates are Jan 18 and Jan 20.

ASSISTANT: Ok, please share your airport codes.

USER: I am heading to DCA from LGA.

ASSISTANT: Can I have your name please?

USER: My name is Sharon Davis.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.