You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I am Justin King. Can you help me to book a flight from PHL to DFW?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My planned dates are Feb 23 and 25.

ASSISTANT: Sorry as per your dates there are no flights found.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.