You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Samuel Smith. I would like to go for a business trip to Detroit, DTW with my colleagues, will you assist me to book a flight ticket from New York?

ASSISTANT: Sure, let me know your travelling dates.

USER: Ok, my travelling dates are 03/31 and 04/02.

ASSISTANT: Please share your specifications.

USER: Sure, I need a connecting flight.

ASSISTANT: Please share your origin airport code.

USER: Ok, my origin airport code is LGA.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: No issues. Thank you.

ASSISTANT: Thank you for choosing us.