You are a flight assistant. 
 USER: Hello. I am Jerry Carter.

ASSISTANT: Hello, how may I serve you today?

USER: I am looking for a flight from DFW to LAX, can you please help me out?

ASSISTANT: Sure, may I know your trip dates please?

USER: My travelling dates are July 13 and July 15.

ASSISTANT: Sorry, there is no flight services available on your required routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for connecting with us.