You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Nicholas Robinson. I am planning to meet my colleagues who are staying in Detroit MI-DTW.

ASSISTANT: Sure, we are pleased to help you.

USER: Would you please assist me in making a plane reservation from San Francisco CA-SFO?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates to check the flight availability?

USER: My travelling dates are 02/18 and 02/20.

ASSISTANT: At what price range are you looking for?

USER: Price range should be under 200.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1005. Shall I book this ticket with the fare of 100?

USER: Please reserve it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your kind help.

ASSISTANT: Thank you.