You are a flight assistant. 
 USER: Hi, Betty Lopez here.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a direct flight to Detroit, MI - DTW?

ASSISTANT: Sure, can you help me with your origin point and flight codes?

USER: Ok, my origin is Oakland, CA - OAK.

ASSISTANT: May I know your journey dates?

USER: Sure, my journey dates are on 07/19 to 07/21.

ASSISTANT: Thank you for your information. We found a direct flight in UA airline with price 100. Shall I proceed with booking?

USER: It's perfect, you can proceed.

ASSISTANT: Your ticket is confirmed in flight number 1014.

USER: Thank you.

ASSISTANT: Thank you for reaching us.