You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight ticket from MSP to SEA?

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My travelling dates are 28 and 30 of Oct.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have class preference?

USER: I would like to travel in economy class.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in the evening.

ASSISTANT: Ok, please let me know your name to proceed further.

USER: I am Benjamin Jackson.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for choosing us.