You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you?

USER: I am Dorothy Hall. I want to visit Old Las Vegas Mormon fort state historic park with my friends in Las Vegas to enjoy my holiday trip. Can you help me to book a flight ticket within the price of 200?

ASSISTANT: Sure, I am mirthful to help you. Please provide your travelling details?

USER: I want to travel on 07/02 and return at 07/04.

ASSISTANT: Can you please provide me your airport abbreviates?

USER: My airport codes are: CO - DEN and NV - LAS.

ASSISTANT: Ok, Please wait a moment, I will get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight found with number 1003 and AA as airline.

USER: Please specify the flight details.

ASSISTANT: It is connected flight with fare amount of 100. Shall I proceed with the booking?

USER: Ok, proceed please.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help and support.

ASSISTANT: Thank you for availing us, Have a safe journey.