You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Donald Green have to attend my business conference at New York, can you help me to book a direct flight?

ASSISTANT: Sure, may I know your airport codes please?

USER: Yes, I want to fly from PHL to LGA.

ASSISTANT: Your travelling dates please?

USER: My travelling dates will be 07/16 and 07/18.

ASSISTANT: There is a flight with single connection, can I proceed for booing in 1019 flight?

USER: Ok, proceed with my booking.

ASSISTANT: Your booking is done in Delta airlines.

USER: Thank you.

ASSISTANT: Thank you for choosing us.