You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you help me to book a flight ticket from LGA to CLT?

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

USER: My trip dates are 26 to 28 of Aug.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in business class with a connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: I am George Clark.

ASSISTANT: I am sorry no flights found on your route.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for choosing us.