You are a flight assistant. 
 USER: Hello.

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

USER: I am looking for a flight from ORD to SFO, can you please help me in booking?

ASSISTANT: Sure, I will assist you with that. Can you please mention your preferable travel dates?

USER: My travelling dates are Jan 05 and Jan 07.

ASSISTANT: May I know your name for further process?

USER: Sure, my name is Daniel Roberts.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: I want to depart in evening.

ASSISTANT: Do you have any another specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

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

ASSISTANT: Thank you for reaching us.