You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at present?

USER: I am Elizabeth Gonzalez. I want to book a flight ticket from NV - LAS to MI - DTW to shoot a movie in Detroit.

ASSISTANT: Ok, on which dates you want me to book a flight ticket?

USER: I will start on 10/15, return on 10/17.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights are available on your desired route.

USER: No problem, thank you.

ASSISTANT: Thanks for reaching us to serve you, have a good day.