You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me in booking a flight ticket to BOS from LAS in August month?

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you for considering my request. My travelling dates are Aug 24 and Aug 26.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight for my journey.

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Karen Davis.

ASSISTANT: Wait a minute, let me check the flight availability.

USER: Sure.

ASSISTANT: Sorry, there are no flights available.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for choosing us.