You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,How can I serve you?

USER: Stephanie Carter here, I need to book a flight from SFO to ORD. Could you please help me out?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My scheduled to and fro travel dates are September 9 and 11.

ASSISTANT: Please wait a minute.

USER: Sure, I will be here.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Oh! I am not happy with it. I will try to get help from other services. Anyway thank you for your time.

ASSISTANT: Thank you for opting us.