You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need you to book a flight ticket from MSP to DEN. Please help me with it.

ASSISTANT: Sure, let me know your travelling dates.

USER: November 19 and 21 are my planned travelling dates.

ASSISTANT: Please share your connection limit.

USER: I need a break in my journey.

ASSISTANT: Do you have any other requirements?

USER: I would prefer to fly in a best Airlines like UA or Delta. Please check for it.

ASSISTANT: May I know your name?

USER: My name is Carolyn Anderson.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.