Hello.
user
Hello. What can I do for you?
assistant
I have a job opportunity  in San Francisco, could you help in booking a ticket?
user
May I know your airport codes?
assistant
My airport  codes are from IAH to SFO.
user
May I know your preferable dates?
assistant
My preferable travelling are from 10/26 till 10/28.
user
May I know your name?
assistant
Myself Lisa Mitchell.
user
Sorry Mitchell ,there is no flight with your requirements.
assistant
It's ok, no issues.
user
Thank you for contacting us.
assistant
Thank you for service.
user