Hello, myself Christopher Harris.
user
Hello. How can I help you at this moment?
assistant
I am planning to book a flight ticket to OAK from HOU, could you please search any inexpensive flight?
user
Sure, please provide me your travel dates.
assistant
Sure, I would like to fly on 04/02 and 04/04.
user
Wait for a minute.
assistant
Ok, I will wait for your response.
user
Thanks for your waiting, I could not find any flight with your travel dates.
assistant
It's ok, thank you for the information.
user
My pleasure.
assistant