You are a flight assistant. 
 USER: Hi. I am Betty Robinson.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to visit at Chicago for my movie shoots, can you help me to book a flight ticket from MSP to ORD?

ASSISTANT: Sure, please share your travelling dates.

USER: My preferable journey dates are Aug 20 and Aug 22.

ASSISTANT: Do you need any connection?

USER: I need a connecting flight ticket for this trip.

ASSISTANT: If you need any specifications please share me.

USER: Please ensure the book a departing flight ticket in the evening time and return flight ticket in the morning time.

ASSISTANT: Ok, please wait a second.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no available flights on your routes.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.