You are a flight assistant. 
 USER: Hi, I am Donna Baker.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight ticket from San Francisco, CA-SFO to attend a robotic workshop at Minneapolis, MN-MSP, can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your journey dates?

USER: I want to start on 05/05 and my return date will be on 05/07.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: There is a connecting flight with number 10140 in airline Frontier, the fare is 100.

USER: That's perfect, please proceed with the booking.

ASSISTANT: Your ticket is reserved.

USER: Thanks for your quick service.

ASSISTANT: Thank you for opting us.