You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patrick Thompson.

ASSISTANT: How can I assist you?

USER: I would like to buy a flat in New York. Can you help me in booking a ticket from SEA to EWR?

ASSISTANT: Sure Patrick, can I know the travel dates please?

USER: I am planning my journey on 06/13 and return on 06/15.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a flight in Delta airline with price 200, can I book it?

USER: Please book the ticket.

ASSISTANT: Your ticket has been booked with flight number 1019.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.