You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patrica Martin.

ASSISTANT: how may I assist you?

USER: Actually I am business tycoon, I have to attend a entrepreneurship meeting at Dallas. Can you please help me in reserving the ticket from DTW to DFW?

ASSISTANT: Sounds great, Can I have your planned travel dates please?

USER: I am willing to drop-off 07/10 and again I will retrieve on 07/12.

ASSISTANT: Please wait a moment, I will find the availability of flights.

USER: Sure, I will wait for your kind response.

ASSISTANT: Patricia, no flights has been found on your planned travel dates.

USER: Not a big deal, anyway thank you very much for your kind service.

ASSISTANT: Thank you for choosing our agency.