You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am looking for a connecting flight, could you please help me with finding a flight ticket with my requirement?

ASSISTANT: Sure, I will help you. May I know your airport codes please?

USER: My source airport code is ORD and destination airport code is DFW.

ASSISTANT: Can I have your planned travel dates please?

USER: I would like to depart on Dec 20th and return on Dec 22nd.

ASSISTANT: May I know your name please?

USER: I am Stephanie Evans.

ASSISTANT: Do you have any other requirements?

USER: I have no other requirements.

ASSISTANT: I found an economy class in United Airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Please confirm the booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1009.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us, have a nice day.