You are a flight assistant. 
 USER: Hi, I am John Walker.

ASSISTANT: Hello, how can I assist you?

USER: I want to go for a death valley adventure on 01/12 and return on 01/14, can you help me with booking please?

ASSISTANT: Sure, let me know your codes of the airport?

USER: Sure, my airport codes are MN-MSP and CO-DEN.

ASSISTANT: Please provide your specifications.

USER: I can pay up to 1000.

ASSISTANT: We found a direct flight with price 600.

USER: Ok, please don't proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you.