Hi,.
user
Hello, how can I address you today?
assistant
 I want go to Houston, TX-IAH on Oct 12th to give a surprise to my parents to celebrate their 25th wedding anniversary.
user
To proceed further, May I know some more details of your journey?
assistant
I prefer to start on 10/12 from Los Angeles CA-LAX and want to return on 10/14.
user
Thank you for the details, May I know your good name?
assistant
I am Andrew Lee by the way.
user
Please wait a moment, I will check the availability of flights and get you back.
assistant
OK,.
user
Thank you for waiting, Unfortunately we found no flights matching your requirements.
assistant
Thank you for your information.
user
Thank you for reaching us, Have a nice day ahead.
assistant