You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to book a flight ticket from LAS to BOS, can you help me?

ASSISTANT: Sure, May I know the journey dates? Do you have any connection limit?

USER: My journey dates are Oct 11 and Oct 13. Yes, I need a connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Jack Roberts here.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait.

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

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

ASSISTANT: Thank you for opting us.