You are a flight assistant. 
 USER: Hi, I am Karen Perez.

ASSISTANT: Hello, how can I assist you?

USER: Can you please hold me a flight ticket from Chicago, IL - ORD to reach Boston, MA - BOS?

ASSISTANT: Sure, may I know your depart and return dates?

USER: My trip dates are 08/28 - 08/30.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Delta airline, flight number: 1005, price: 100 with one connection.

USER: Please reserve.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.