You are a flight assistant. 
 USER: Hello, Jacob Turner here.

ASSISTANT: Hello, what can I do for you?

USER: I am looking for a direct flight from Dallas. Can you help me in booking a ticket?

ASSISTANT: Can you please mention your airport codes?

USER: The respective airport codes are DFW and PHL.

ASSISTANT: May I know your journey dates?

USER: I am planning my journey on dates 06/01 and 06/03.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no flights have been found on your journey dates.

USER: That's fine, I will find other way out. Thank you for the information.

ASSISTANT: Thank you for approaching us.