You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you at this moment?

USER: I am Amanda King, I need to have a connected flight for my journey to Chicago for celebrating my sister's birthday. Can you please help me to book a flight ticket from DFW to ORD?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you for accepting my request.

ASSISTANT: Can you please provide your trip dates to proceed further?

USER: Sure, my trip dates are 10/22 and 10/24.

ASSISTANT: Give me a moment please.

USER: Ok.

ASSISTANT: Amanda King, there is no flight service available on this route on your provided dates.

USER: Not a problem, anyway thank you for the help and your quick response.

ASSISTANT: Thank you for contacting us.