You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Andrew Phillips here. I would like book a ticket to New York for attending a business meet.

ASSISTANT: Andrew Phillips, I will help you. Please provide me with your to and fro airport codes.

USER: My genesis and terminus airport codes are JFK and LGA.

ASSISTANT: May I know your travelling dates please?

USER: My travel dates are Nov 16 and Nov 18.

ASSISTANT: Thank you for the information. I regret to inform you that there are no flight available on your planned dates.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a great day.