You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to book a flight ticket to New York to take a part in scuba driving, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: I want to start my journey from LGA and my destination airport code is EWR.

ASSISTANT: Can I know your travelling dates?

USER: I need to start my journey on 11/03 and my return date will be on 11/05.

ASSISTANT: In which class would you like to travel?

USER: I am comfortable with any class.

ASSISTANT: To proceed further, may I know your name?

USER: I am Carolyn Scott.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: That's ok, I'll choose any alternative. Thank you.

ASSISTANT: Ok. Thank you for contacting us.