Hello. I am Larry Johnson.
user
Hello, how can I help you?
assistant
I want to join the Brooklyn walking tour in DEN. Can you book me a ticket from IAH?
user
Sure, I am glad to help you.
assistant
Thank you.
user
Please provide your planned travel dates to proceed further.
assistant
I would start on Apr 15 and return on Apr 17.
user
May I know your preferred depart and return time?
assistant
I need to return in the evening.
user
Do you prefer either economy or business class?
assistant
I am okay with any class.
user
Ok, please let me know if you have any other requirement.
assistant
I need 1 stop over.
user
Sure, please wait for a while.
assistant
Ok.
user
Sorry, we didn't find any flight for your journey details.
assistant
That's Ok, thanks for your assistance.
user
Thank you.
assistant