You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Anna Young here.

ASSISTANT: How may I help you?

USER: Do you have any direct flight from DFW to ORD to meet my friend?

ASSISTANT: Ok, please share your trip dates to go.

USER: My trip dates are 04/17 and 04/19.

ASSISTANT: Thanks for your information, there is no flight available on your preferable information.

USER: That's fine, thanks for your information and great service.

ASSISTANT: My pleasure.