You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me to search a flight from Seattle, WA-SEA with the price of 1000?

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

USER: The travel dates are 06/08 to 06/10.

ASSISTANT: May I know your name and your destination please?

USER: My name is Gary white and I want to go Philadelphia, PA-PHL.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

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

USER: Yes, please book the ticket.

ASSISTANT: Your ticket has been booked with flight number 1002.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.