You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from ATL to PHX?

ASSISTANT: Sure, may I know your trip dates please?

USER: Thank you. I have planned my travel dates as Jan 29 and Jan 31.

ASSISTANT: Do you have any other requirements?

USER: I would prefer business class to travel so please make sure that.

ASSISTANT: Let me know your name please.

USER: Sure, myself Thomas Miller.

ASSISTANT: Please wait for a while.

USER: Sure but I am looking for single connecting flight so please check with that.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Most welcome.