You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you today?

USER: I am Sandra Parker. Can you please help me in booking my flight ticket from ATL to LAS?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are June 10 and June 12.

ASSISTANT: Is there any class preference?

USER: I do not have any class preference.

ASSISTANT: Do you need any halt in between your journey?

USER: I need connecting flight.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for choosing us.