You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Please help me to book a flight ticket from AUS to PHX.

ASSISTANT: Sure, I will be happy to help you. Kindly mention your planned trip dates?

USER: Oct, 6 and Oct, 8 are my trip dates.

ASSISTANT: Let me know your connection limit.

USER: I would prefer single connection.

ASSISTANT: Do you have any other requirements?

USER: I need to travel in business class only.

ASSISTANT: Please provide your name.

USER: My name is Samuel White.

ASSISTANT: We are sorry to inform you that there is no flight found with your matching details.

USER: That's ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.