You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: Myself Laura Lee, I am planning my trip to travel Oakland this weekend. Can you please help me in reserving the ticket from DEN to OAK?

ASSISTANT: Sure, Please help me with your travel dates.

USER: I am willling to leave on Oct 11 and again I will retrieve on Oct 13.

ASSISTANT: Please wait a moment.

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

ASSISTANT: Sorry, No flights found with your chosen dates.

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

ASSISTANT: Thank you for availing us.

USER: You are welcome.