You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, may I know your planned travel dates please?

USER: I am departing on Oct 30 and return on Nov 01.

ASSISTANT: Can I have your name please?

USER: My name is Barbara Scott.

ASSISTANT: Do you need a connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to return in morning time.

ASSISTANT: Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Barbara Scott, no flights has been found on your specifications.

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

ASSISTANT: Thank you for reaching us.