You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Shirley Lopez, I am planning for an outing at Detroit. Can you help me to book a ticket for me?

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

USER: My planning dates are 09/15 and 09/17.

ASSISTANT: Ok, may I know your airport codes please?

USER: Nearby airport codes are MSP and DTW.

ASSISTANT: Ok, hold on for a moment.

USER: Take your time. See for connecting flights.

ASSISTANT: Sorry Lopez, there are no flight available on your requested dates.

USER: No issues. Thank you for checking.

ASSISTANT: Sorry for the inconvenience provided.

USER: It's ok.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are welcome.