You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to book a ticket from EWR to JFK to attend workshop, can you help me in booking?

ASSISTANT: Sure, can you mention your travel dates please?

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

ASSISTANT: Let me know your good name please.

USER: My name is George Williams.

ASSISTANT: Do you need a stopover?

USER: I prefer a connecting flight.

ASSISTANT: Please share me your specifications if you have.

USER: I do not have any other specifications.

ASSISTANT: Sorry, there is no flight service on your required dates.

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

ASSISTANT: Thank you for reaching us.