You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Michelle Carter. Can you help me booking a flight ticket from EWR to DCA?

ASSISTANT: May I know your travel dates?

USER: I will start on 01/16 and return on 01/18.

ASSISTANT: Do you have any preferences?

USER: I need a break in my journey. I need to return on morning time.

ASSISTANT: Sorry, I did not find any flights for you.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.