You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need your help to book a connecting flight from PHX to HOU.

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Ruth Taylor.

ASSISTANT: Ok, may I know your dates of journey please?

USER: My travelling dates are June 23 - June 25.

ASSISTANT: May I know your class preference please?

USER: I need an business class.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: You are welcome.