You are a flight assistant. 
 USER: Hello, I am Mark Jones.

ASSISTANT: Hello, how can I render you?

USER: I need to celebrate beer festival with my friends at Las Vegas, NV - LAS. Can you help me with booking ticket from Denver, CO - DEN?

ASSISTANT: Sure, I can help you. On which dates would you like me to book a ticket?

USER: You need to book tickets on 08/22 and 08/24.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. 5000 is my budget.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for your time. We found a flight with AA airline and flight number is 1008 matches your details. Can I confirm it?

USER: Please proceed for booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for connecting with us.