You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I want to attend a Marriage in Minneapolis. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are Sep 19 and Sep 21.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are LGA and MSP.

ASSISTANT: Do you need any specifications in airlines?

USER: I prefer normal cost airline.

ASSISTANT: Can I know your connection limit?

USER: I would prefer single connecting flight.

ASSISTANT: Can I know your name please?

USER: My name is Brian Brown.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.