You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I am Patricia Scott, can you help me to book a connecting flight to JFK?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travelling dates are 08/09 and 08/11.

ASSISTANT: Could you please share me your source airport code?

USER: Please book evening flight from LAS.

ASSISTANT: Do you have any specific arrival and depart time?

USER: Please check with above details.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: Please check with above details.

ASSISTANT: Do you need any airline preference?

USER: I am fine with any airlines.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: No issues, thank you for your time.

ASSISTANT: Thanks for reaching us, have a nice day.