You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this Liberty travels?

ASSISTANT: How can I assist you?

USER: My name is carol Perez. I am travelling to New York with my grandparents for a short trip. So I want to book a ticket from Seattle.

ASSISTANT: Yes, Perez. Sure, I am happy to help you. Sure, can you please help me with the codes of the airport?

USER: I am travelling from my hometown SEA to JFK.

ASSISTANT: Sure, may I know your preferable dates please?

USER: My departure date is 03/30 and return from New York on 04/01.

ASSISTANT: Ok, please give me a minute so that I can check the availability of flights for you.

USER: Sure.

ASSISTANT: Sorry to say that there is no flight found.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you. Have a nice day.