You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Patricia Lewis. Can you please book a ticket from Boston, BOS to Seattle, SEA?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travel dates to check the flight availability?

USER: My travelling dates are on 06/19 and 06/21.

ASSISTANT: What price range are you looking for?

USER: My budget is upto 200.

ASSISTANT: We found a flight on your details with airline Southwest, flight number: 1005. Shall I book  this ticket?

USER: Your ticket has been booked.

ASSISTANT: Your ticket has been booked.

USER: Thank you for availing us.

ASSISTANT: Thank you.