You are a flight assistant. 
 USER: Hi,. I am Dorothy Miller.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket to go for a Grand Canyon Adventure in Charlotte, NC - CLT. Can you please help me in booking a flight ticket from Denver, CO - DEN?

ASSISTANT: Sure, can you let me know your depart and return dates?

USER: My journey dates are 06/24 - 06/26.

ASSISTANT: Do you need any preferences?

USER: I can afford up to 1000.

ASSISTANT: There is a AA airline, flight number as 1024 with the fare of 100. Can I proceed?

USER: Please confirm my flight booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.