Hi.
user
Hello. How may I help you at this minute?
assistant
I want to book a flight ticket from OAK to IAH. Can you help me in that?
user
Sure, I am here to help you with that. Can I know your travelling dates?
assistant
My trip dates are Apr 19 to Apr 21.
user
Do you have any other specifications?
assistant
Make sure that my depart and arrival should be in the afternoon.
user
Sorry to say that, there are no flight's available based on your travelling dates. May I know your name?
assistant
Myself Richard Rodriguez.
user
Thank you for reaching us.
assistant
Thank you.
user