You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Lisa Perez this side, I have a medical check up at New York, can you book a ticket?

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

USER: Search the flights on 03/15 and 03/17.

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

USER: Search the flights from OAK to JFK.

ASSISTANT: Ok, hold on for a moment,.

USER: Make sure that connections should be 1.

ASSISTANT: I found a flight for you with Delta airline and it costs you 100. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with 1022 flight number.

USER: Thank you for confirmation.

ASSISTANT: Thank you for choosing us. Have a safe flight.

USER: Welcome.