You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Brandon Nelson. I want to book a flight ticket from NY-LGA to NV-LAS. Can you help me?

ASSISTANT: Sure, please let me know your journey dates.

USER: 09/04 and 09/06 are my travelling dates.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no flight available on your dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.