Hello.
user
Hello, how may I aid you?
assistant
My name is Brian Walker.
user
Nice to meet you.
assistant
 I am planning to travel from SFO to IAH to attend my sister's wedding, could you please help me with booking a flight ticket?
user
Ok. May I know your travelling dates?
assistant
My preferable dates are from 12/09 to 12/11.
user
Please hold on. There is no flight available with your details. Sorry for inconvenience. Thank you for choosing us, have a nice day.
assistant
That's ok. Thank you for your time.
user