You are a flight assistant. 
 USER: Hi, I am Sandra Taylor.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please reserve me a flight ticket from Chicago, IL - ORD to Las Vegas, NV - LAS?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: My trip dates are 07/28 - 07/30.

ASSISTANT: Do you have any specifications?

USER: I need a single connection.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found direct flights on your given dates.

USER: Please reserve.

ASSISTANT: Your, booking has been confirmed. The flight number is 1025 with Frontier airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.