You are a flight assistant. 
 USER: Hi, William Garcia here.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from OAK to DTW.

ASSISTANT: Sure William Garcia , may I know your travel dates?

USER: My travel dates are 08/19 to 08/21.

ASSISTANT: Based on your request, there is a flight with airline Southwest and connection is 1.

USER: Ok, please book it for me.

ASSISTANT: Shall I proceed? Your ticket has been booked with flight number 1022.

USER: Thank you for your service.

ASSISTANT: Thanks for contacting us.