You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have to attend my cousin marriage at Chicago, can you please help me to book a flight ticket from MSP to ORD?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, my travelling dates are July 09 and July 11.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Gregory Walker.

ASSISTANT: Do you have any other specifications?

USER: My depart time is morning.

ASSISTANT: Gregory Walker, there are no flights available in your route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.