You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Please book a flight ticket from MSP to LAS?

ASSISTANT: Can you please help me with your travelling dates?

USER: My journey dates are Jan 12 and Jan 14.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Let me know your good name?

USER: I am John Walker.

ASSISTANT: There are no flights running currently with your specified dates to travel.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing us.