You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Jeffery Turner. Can you please help me in booking my flight ticket from SFO to PHX?

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: My trip dates are 03/14 and 03/16.

ASSISTANT: Ok, please wait for a minute.

USER: Ok, sure.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank your for reaching us.