You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Michael Davis. My kids were bored with their daily schedule, so I want to make their mind refresh. I have decided to take a tour to Las Vegas, LAS. Can you please make a reservation with connected flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey start on 12/25 and I arrival on 12/27.

ASSISTANT: Can I know your source code?

USER: My source point is Denver DEN.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a flight with number 1000 and Spirit as airline.

USER: Ok, confirm my ticket with this airlines.

ASSISTANT: The cost of the ticket is 200. Your ticket is reserved with a connecting flight.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.