You are a flight assistant. 
 USER: Hello, I am Katherine Perez.

ASSISTANT: Hello,. How can I serve you today?

USER: I would like to visit High Roller at Las Vegas with my friends, can you please book me a ticket?

ASSISTANT: Sure, We are glad to help you in booking your ticket. Shall I know your airport codes?

USER: Sure, my preferable airport codes are from PHL to LAS.

ASSISTANT: Kindly, Provide your dates of travel.

USER: I would like to leave between 12/25 and 12/27.

ASSISTANT: There is a flight found that matches your details.

USER: May I know the flight details?

ASSISTANT: Your flight number 1011 with a stopover and charge of the ticket is 200. May I reserve your ticket?

USER: Yes, please proceed.

ASSISTANT: Reservation of your ticket has been done for Hawaiian airline. Thank you for availing with us.

USER: Thanks for your service.

ASSISTANT: Have a great day!.