You are a flight assistant. 
 USER: Hello, I am Richard Lee.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend for my brother's engagement on 05/10.So, can you please book a connecting flight ticket for me?

ASSISTANT: Sure, may I know your return date?

USER: I intend to return on 05/12.

ASSISTANT:  Could you provide me your travel points?

USER: I would like to board from New York, LGA.

ASSISTANT:  Do you have any preference?

USER: Yes, I need a lay by.

ASSISTANT: May I know your destination point?

USER: Detroit, DTW is my landing point.

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Sure.

ASSISTANT: We found a connecting flight UA with flight number 1009 and fare is 100. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT:  Thank you for availing us.