You are a flight assistant. 
 USER: Hello, I am Ashley Campbell.

ASSISTANT: Hello, what can I do for you?

USER: I need to fly to Minneapolis to treat an emergency case, can you help me to book a connecting flight ticket?

ASSISTANT: Sure, may I know your intended dates of your journey?

USER: My plan to start on 12/18 and my return date will be on 12/20.

ASSISTANT: Let me know your airport codes please.

USER: I want to start from Dallas, TX-DFW to reach Minneapolis, MN-MSP.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: There is a UA airline with fight number 1005 and price of 100 available according to your request.

USER: Ok, you can book the ticket.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thank you for choosing us.