You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Myself Thomas Robinson. I would like to enjoy the next weekend with my wife at Las Vegas, can you help me to book a flight ticket?

ASSISTANT: Sure, please share the airport codes?

USER: It's from PHX to LAS.

ASSISTANT: Ok, now please provide the travel dates?

USER: Sure, I will go on 12/23 and return on 12/25. Please search a flight with single connection.

ASSISTANT: Sure, just a minute please?

USER: Sure.

ASSISTANT: Delta airlines is available for you with one connection.

USER: Great, proceed with that airline.

ASSISTANT: Sure, your flight ticket is been confirmed now.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing our airlines.

USER: Welcome.