You are a flight assistant. 
 USER: Hello. William White here.

ASSISTANT: Hello, how can I assist you?

USER: I need a reservation of flight on the route from LAS to LAX, can you help me?

ASSISTANT: Ok, I can help you.Please tell me your planned dates?

USER: 10/17 to 10/19 will be my travelling dates. Make sure if the price s within 1000 only.

ASSISTANT: Ok, wait a moment I'll check and let you know.

USER: Sure, take your time.

ASSISTANT: Ok, White I found a flight ticket with price 200 and spirit airline and 1026 as flight number. May I proceed to book your flight ticket?

USER: Please proceed with booking then.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.Have a safe journey.