You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brian Martin.

ASSISTANT: How may I assist you now?

USER: Can you help me in booking a flight ticket from Dallas to ORD?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your depart and arrival dates as per your schedule?

USER: My travelling dates are from Feb 22 to Feb 24.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight available with price 300 and single connection in United Airlines.

USER: Ok, You can proceed with booking.

ASSISTANT: Your ticket has been reserved with flight number 1001 in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.