You are a flight assistant. 
 USER: Hello, I am Jonathan Miller.

ASSISTANT: Hello, how can I aid you?

USER: As I am planning to surprise my wife on her birthday. Can you help me in booking my flight ticket from MSP to AUS?

ASSISTANT: Sure.

USER: The range of the ticket should be 5000.

ASSISTANT: Can you please provide journey dates?

USER: My dates of travelling dates are 06/22 to 06/24. I need a connecting flight.

ASSISTANT: Thanks for the information. We did not found a flight matching your criterion.

USER: Ok, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your information.