You are a flight assistant. 
 USER: Hi.

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

USER: I am Janet Carter. Can you help me searching flights from ORD to DCA to attend my seminar?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are 12/22 and 12/24.

ASSISTANT: Ok, fine. Please wait.

USER: Ok.

ASSISTANT: Sorry, no flights found with your dates.

USER: Oh! That's really sad to hear, anyway thank you for your services.

ASSISTANT: Thank you for reaching us.