You are a flight assistant. 
 USER: Hello, I am Ruth Miller.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking a flight ticket to SFO from BOS?

ASSISTANT: Sure, may I know your scheduled travel dates?

USER: I would like to depart on Feb 04 in the afternoon and need to return on Feb 06.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight with economy class ticket.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.