You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I abet you?

USER: I am Cynthia Davis.

ASSISTANT: Ok.

USER: I want to book a flight ticket from DFW to SFO. Please help me.

ASSISTANT: Sure, are you looking for direct flight or connecting flight?

USER: I need a connecting flight ticket.

ASSISTANT: Help me with your travel dates?

USER: My travelling dates are from 02/21 to 03/23. 02/23.

ASSISTANT: Ok, please hold on.

USER: Ok.

ASSISTANT: Sorry, no flights found to your preferable locations. Thanks for opting us.

USER: No issues, thank you.