You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Timothy Mitchell. I want to book a flight ticket.Can you help me out?

ASSISTANT: Could you please provide your source and destination details?

USER: I want to travel from PA - PHL to TX - AUS.

ASSISTANT: Could you please provide your travelling dates?

USER: My travelling dates are 05/29 to 05/31.

ASSISTANT: Could you please provide your price and connections limit?

USER: Sure, my connection limit is 1 and price is 1000.

ASSISTANT: Sorry, there is no flight found as per your details.

USER: Thank you.

ASSISTANT: Thank you for contacting us.