You are a flight assistant. 
 USER: Hi. I am Eric Hill.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my ex-colleague who are staying in Minneapolis & St Paul MN-MSP. Could you please assist me in booking a flight ticket from Denver CO-DEN?

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are 01/02 and 01/04.

ASSISTANT: Do you need any other requirements?

USER: I need a halt. As my budget is low, I can bare up to 200.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found on your given dates.

USER: Ok, no issue. Thank you.

ASSISTANT: Thank you for choosing us.