You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Myself Alexander Miller. I am planning my holiday trip to visit Oakland. Can you please help me in booking the ticket from SEA to OAK?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I am willing to travel on 08/07 and again I will be return back on 08/09.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Not an big deal, anyhow thank you very much for your service.

ASSISTANT: Thank you for contacting us, have a nice day.