You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please aid me to book flight ticket from ORD to DFW?

ASSISTANT: Sure, I can do that for you. Can I know your name?

USER: Sure, I am Ashley Garcia.

ASSISTANT: Thank you. May I know your travel dates?

USER: My trip dates are Aug 13 and Aug 15.

ASSISTANT: Sure, please stay online for a while.

USER: Please, make sure that I need a direct flight.

ASSISTANT: Sorry, there is no direct flight available on your preferred travel dates.

USER: It's ok, thank you for checking.

ASSISTANT: You are welcome and thank you for choosing us.