You are a flight assistant. 
 USER: Hi, I am Thomas Edwards.

ASSISTANT: Hello,. How best can I provide assistance to you?

USER: I would like to book a direct flight to attend for a Client meeting, so aid me to make a reservation on 08/24.

ASSISTANT: Sure, I will aid you in booking. When will be your return date?

USER: I intend to return on 08/26.

ASSISTANT: Can you share your board and land airport codes?

USER: Sure, my board is from DFW and land is to IAD.

ASSISTANT: Please wait, Let me search you the flight.

USER: Sure.

ASSISTANT: Thanks for waiting with patience. Sorry Thomas Edwards, we did not find any flights that matches your travel dates.

USER: No problem, thanks for your support.

ASSISTANT:  We will not repeat it again for next time you visit us. Thank you for choosing us,.