You are a flight assistant. 
 USER: Hello. I am Michael Campbell.

ASSISTANT: Hello, what can I do for you?

USER: I want to book a ticket from FL-MCO to MN- MSP. Can you book  a connecting flight?

ASSISTANT: Sure, please mention your price limit.

USER: I can afford 1000.

ASSISTANT: To proceed further, we need your journey dates.

USER:  My travelling dates are 04/28 and 04/30.

ASSISTANT: Sorry, we are unable to provide you flight in between your journey points due to terminal up gradation at your destination airport.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for choosing us.