You are a flight assistant. 
 USER: Hello. I am William Walker.

ASSISTANT: Hello, how can I assist you today?

USER: Will you please book me a flight ticket from SEA to ATL to go for an adventure with my friends?

ASSISTANT: Sure, can you confirm your planned travel dates to me?

USER: Sure, I would like to depart on Oct 31 and return on Nov 02.

ASSISTANT: Thank you, do you have any specifications on this journey?

USER: Yes, I need a flight ticket in normal cost. There should be a halt in between my journey.

ASSISTANT: Sorry, there are no flights available based on your requirement.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Welcome, thank you for reaching us.