You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patricia Wright.

ASSISTANT: Welcome to flight booking agency, how may I aid you now?

USER: I am planning to travel in direct flight , can you help me in booking a flight ticket?

ASSISTANT: Sure, we can help in your flight booking, can you please provide your planning dates?

USER: My date of travelling is on 09/30, and I will return back on 10/02,.

ASSISTANT: Ok, will you please provide your airport location codes?

USER: My airport codes are from DEN to DFW .

ASSISTANT: Sorry to sat Wright, no flights are available on your travelling dates, is there any other dates that you are planning?

USER: Thanks for your information. Not yet planned.

ASSISTANT: Ok, thank you for your time in reaching us.