You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Frank Johnson. I would like to book a flight ticket from ORD to DFW, can you please help me to book a flight ticket?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my journey dates are Feb 03 and Feb 05.

ASSISTANT: Do you have any requirements?

USER: I need a single connection flight.

ASSISTANT: There is a connecting flight 1007 with Delta airlines, can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Welcome.