You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you please help me in booking a flight ticket to AUS from PHL?

ASSISTANT: Sure, can you please mention the dates of your journey?

USER: My travel dates are from May 08 to May 10.

ASSISTANT: Is there any class preference?

USER: Yes, I prefer to travel in business class.

ASSISTANT: Do you have any specifications?

USER: I would like to depart in the afternoon. I need a connecting flight.

ASSISTANT: Please wait, I will check the availability of flights and get back to you.

USER: Ok.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: Ok, I will try with another alternative.

ASSISTANT: May I know your name?

USER: I am Jeffrey Martin.

ASSISTANT: Ok.

USER: Thank you for checking.

ASSISTANT: Thank you for contacting us.