You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Ruth Davis. I want to visit Los Angeles, could you help me in booking the ticket?

ASSISTANT: Sure, let me know your travel details?

USER: It's from 01/15 to 01/17.

ASSISTANT: Tell me your airport codes.

USER: It's from DTW to LAX.

ASSISTANT: I found you a flight by Delta airlines, flight-1009.

USER: Pleas book the ticket.

ASSISTANT: Shall I book it? Ok, your booking is confirmed.

USER: Thank you for helping me out.

ASSISTANT: Thanks for choosing us.