You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me to book a flight from SFO to PHX?

ASSISTANT: Sure, could I have your trip dates, please?

USER: Sure, I want to travel on Mar 4 and need to return on Mar 6.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your good name?

USER: I am Stephen Carter.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.