You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gary Moore.

ASSISTANT: What problem that you are facing right now and what help that I can do for you?

USER: I am planning to book a ticket to attend a meeting at SEA. Can you please help me out to book a ticket from OAK?

ASSISTANT: Sure, I am glad to help you in that flight ticket booking. Can you please help me in providing your travelling dates that you have planned for your journey?

USER: Sure, I would like to travel on 01/08 and return back on 01/10.

ASSISTANT: Let me check with your information in our data base, so please give me some time time to check it.

USER: Sure, I will wait for your reply. But try to find a best airline for me.

ASSISTANT: Thank you for waiting, there is no flight to reserve a seat for you to reach you destination region.

USER: But I want to book a ticket urgent, can you please check it once again.

ASSISTANT: Sure, I can check it. Give me a moment.

USER: Sure, take your own time.

ASSISTANT: As per your request, I have checked again in our data base but no airlines is moving to your region due to busy schedule dates and the tickets are completed in all the flights. Sorry for the trouble caused to you.

USER: That's fine, I will complete my journey any other  agency. Thank you for your service.

ASSISTANT: Ok, next time we can serve you better. Thank you for reaching us. Have a nice day.

USER: You are welcome.