You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Barbara Hill, I am planning to start a new business at Philadelphia PA-PHL, help me in booking my flight ticket from Las Vegas NV-LAS.

ASSISTANT: Sure, may I know your journey dates?

USER: 07/19 is my starting date, my return date is on 07/21.

ASSISTANT: Do you have any price limit or connection limit?

USER: I can spend up to 1000. I need a halt with in my journey.

ASSISTANT: We found a connecting flight of frontier airline, flight number as 1007 with the fare of 200.

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.