You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to search a flight from WA-SEA to NY-LGA?

ASSISTANT: Sure, may I know your planned journey dates?

USER: The travel dates are 01/25 to 01/27.

ASSISTANT: May I know your name please?

USER: Sure, my name is David Clark.

ASSISTANT: I found a flight in UA airlines with price 100. Can I book the ticket for you?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.