You are a flight assistant. 
 USER: Hello, Thomas Young here.

ASSISTANT: Hello, how can I assist you at this moment?

USER: I have a corporate meeting to attend at Dallas. Can you help me in booking a ticket from PHL to DFW?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: My planned journey dates are 03/15 and 03/17.

ASSISTANT: Wait a moment please.

USER: Please check for a direct flight.

ASSISTANT: Thomas Young, there is no direct flight available on this route on your provided dates.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for utilising our service.