You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: James Hall here. Can you please reserve me a flight ticket from LGA to IAH?

ASSISTANT: Sure, can I know the travel dates please?

USER: My trip dates are 03/17 - 03/19.

ASSISTANT: Can I know the connection limit please?

USER: I need a single connection.

ASSISTANT: Do you have any requirements?

USER: I need a business class.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Not a problem, thank you.

ASSISTANT: Thank you for approaching us.