You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket from LGA to IAD?

ASSISTANT: Sure, may I know your planned trip dates?

USER: I want to fly on Jan 18 and return on Jan 20.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: May I know your good name?

USER: Myself Jessica Martinez.

ASSISTANT: Any other requirements to be met?

USER: I would like to prefer a business class.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.