You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. In which way I can support you?

USER: I need to book a flight ticket with the name Patrick Hill, can you book me flight ticket with price under 1000?

ASSISTANT: Sure. Where do you want to travel?

USER: As I want to see Art Museum at Denver on 05/19 and return on 05/21.

ASSISTANT: Please help me with your airport codes.

USER: Landing point is to Denver, CO - DEN. Boarding point is from Las Vegas, NV - LAS.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for waiting, Delta airline flight with 1010 number having single connection matches your specifications. Do you want me to confirm this ticket?

USER: It is perfect, you can confirm my seat.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for the assistance.

ASSISTANT: Thank you for reaching us, have a safe journey.