You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from LGA to EWR to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your travel dates?

USER: I am departing on Nov 17 and return on Nov 19.

ASSISTANT: Please share me your name.

USER: My name is Patricia Martinez.

ASSISTANT: Do you have any specifications?

USER: I prefer a direct flight.

ASSISTANT: Sorry, there is no direct flight on your route.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you so much for opting us.