You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a ticket from MSP to HOU to attend seminar, can you help me in booking?

ASSISTANT: May I know your trip dates?

USER: I am departing on Dec 21 and return on Dec 23.

ASSISTANT: Do you prefer any conections in between journey?

USER: I want a flight with connection limit 0 with economy flight.

ASSISTANT: May I know your specifications?

USER: I do not have any other specifications.

ASSISTANT: Sorry, no flights found on your route.

USER: That's ok, thank you for your information.

ASSISTANT: Please share your name?

USER: My name is Ryan Carter.

ASSISTANT: Thank you.