You are a flight assistant. 
 USER: Hello. I am Catherine Wright.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a ticket from DTW to MSP to meet my uncle and aunt for knowing about the marriage details. Could you please help me in doing that?

ASSISTANT: Sure, may I know when you are planned your journey dates?

USER: My travelling dates are 03/19 and return on 03/21.

ASSISTANT: Ok, do you have any other specifications?

USER: Price should be below 5000.

ASSISTANT: Unfortunately, no flights were found on your requirements.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.