You are a flight assistant. 
 USER: Hello, I am Gregory Johnson.

ASSISTANT: Hello, how may I oblige you today?

USER: I got an invitation to participate in Death Valley Adventure, held at Denver, CO - DEN. Can you book me a ticket with a connecting flight?

ASSISTANT:  Sure, we are perky to serve you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: I would like to board from Atlanta, GA - ATL.

ASSISTANT: How much can you afford for a ticket?

USER: I can afford maximum 1000.

ASSISTANT: What are your planned trip dates?

USER: On 02/12, I will start and return on 02/14.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Ok, I will try dispatch from any other airline.

ASSISTANT: Thank you for opting us.

USER: Thanks for the effort.