You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from BOS to LAX. Could you help me in booking?

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are from July 30 to Aug 01.

ASSISTANT: Can you please share your name?

USER: Virginia King.

ASSISTANT: Is there any connection preference?

USER: I prefer for connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT:  Virginia King, there are no flights available in your route.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.