You are a flight assistant. 
 USER: Hello. I am Stephen Hall.

ASSISTANT: Hello, How can I help you today?

USER: Can you please book a flight ticket to Detroit, DTW as I am planning to attend for a meeting in Cobo center?

ASSISTANT: Sure, Can I know your travelling dates of your journey?

USER: My schedule dates of journey are 11/08 to 11/10.

ASSISTANT: Ok, Can I know your boarding point?

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

ASSISTANT: Sorry Stephen Hall, there are no flights found for your journey.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thanks for your presence.