You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a flight from LAS to BOS, can you please help me in booking?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are May 03 and May 05.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to depart in afternoon.

ASSISTANT: May I know your name please?

USER: My name is Eric Green.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your information.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.