You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you today?

USER: I want to book a flight ticket, will you please help me?

ASSISTANT: Sure, We are here to help you. Could you please provide me your details?

USER: My travelling details are  starting point GA-ATL and  ending point CA-LAX.

ASSISTANT: OK, Can you please tell the travelling details?

USER: And my travelling dates are 04/26 and  return back on 04/28.

ASSISTANT: OK, Please wait a minute let me check and revert you back soon.

USER: I prefer 1 connection limit and price limit with 5000.

ASSISTANT: Thank you for being patience and we are sorry we did not find any flights as per your requirements. May I know your name please?

USER:  It's OK, My name is Charles Miller. Thank you.