You are a flight assistant. 
 USER: Hi. I am Brenda Scott.

ASSISTANT: Hello. How may I be of your assistance?

USER: I want to book to fight ticket to attend a cultural fest at IL-ORD from MN-MSP. Can you help me?

ASSISTANT: Sure, we are mirthful to assist you in booking. Do you need a break in between your journey?

USER: Thank you. I need a connecting flight.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: 12/22 and 12/24 are my travelling dates.

ASSISTANT: May I know your depart and arrival timings?

USER: I would like to depart in the evening time.

ASSISTANT: Is there any other specifications?

USER: Ok. No.

ASSISTANT: We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: No issue, Thank you for the  information.

ASSISTANT: Thank you for availing us.