You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Betty Taylor.

ASSISTANT: How can I aid you?

USER: I am planning to visit Detroit to attend a meeting, can you please book me the ticket from MSP to DTW?

ASSISTANT: Sure, I will help you in booking the flight ticket. May I know the your preferable travel dates?

USER: I want to depart on 12/23 and would like to return on 12/25.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no flight available on your preferred travel dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.