You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: I am Sharon Turner. I want to book a ticket from AUS to PHL, can you help me?

ASSISTANT: Sure, May I know the journey dates?

USER: My travel dates are Aug 06 and 08.

ASSISTANT: Do you have any connection limit?

USER: No.

ASSISTANT: Do you have any preference in return time?

USER: I want to return in the afternoon.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for opting us.