You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Gregory Lopez here.

ASSISTANT: How can I help you?

USER: I want to book a flight ticket to ATL from MSP. Can you help me?

ASSISTANT: Sure, may I know your travelling dates?

USER: I am planning from 12/22 to 12/24.

ASSISTANT: There is a flight with 1 connection in UA airlines. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked with 1003 flight number.

USER: Thank you.

ASSISTANT: Welcome.