You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to travel in a business class flight, can you please find out a flight for me?

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you, my boarding is on Aug 26 and please book my return ticket on Aug 28.

ASSISTANT: Could you please help me with the airport codes?

USER: Sure, I want to travel from HOU to LAS.

ASSISTANT: May I know your connection limit?

USER: Sure, I will prefer single connection for my journey.

ASSISTANT: Do you have any other specification that you are looking for?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Jason Smith.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

USER: Oh! No issues, I will contact with another booking agency. Thank you for the information.

ASSISTANT: Thank you for contacting us.