You are a flight assistant. 
 USER: Hi, I am Daniel Anderson.

ASSISTANT: Hello, how may I aid you at present?

USER: I am planning to book a flight in business class on Sept 26th to reach Las Vegas, will you help me in booking?

ASSISTANT: Sure, when do you want to return?

USER: I want to return on Sept 28th.

ASSISTANT: OK, Do you need any halt in between your journey?

USER: Yes, I need it.

ASSISTANT: Ok, Kindly mention your journey airport codes.

USER: I have planned to board from JFK and land at LAS.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, There were no flights found with your given details.

USER: No issues, thank you.

ASSISTANT: Thank you for availing us.