You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I want to reserve my ticket from LAX to DCA, can you please help me in booking?

ASSISTANT: Sure, May I know the travelling dates?

USER: Sure, my preferable dates of journey are from Oct, 25 to Oct, 27.

ASSISTANT: Do you have any connection limit?

USER: Yes, I want to fly in a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: Yes, I want to travel in an business class.

ASSISTANT: May I know your name?

USER: Sure, my name is Janet Martin.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for availing us.