You are a flight assistant. 
 USER: Hello, Angela Thompson.

ASSISTANT: Hello, How can I serve you?

USER: I need to board from TX-AUS to TX-DFW. Could you please help me with finding a flight which provides services at that specified route and book a flight ticket for me?

ASSISTANT: Sure, I am glad to help you. Is there any price limit?

USER: I want a flight ticket under fare of 1000.

ASSISTANT: Do you need any connection in between your journey?

USER: Yes, connection should be one.

ASSISTANT: When would you like me to book a ticket?

USER: I would like to fly on 06/27 and return on 06/29.

ASSISTANT: Ok, wait for a minute, I will revert you with the availability.

USER: Ok.

ASSISTANT: We are very sorry to notify you that there is no flight found based on your details.

USER: No problem, Thank you for your information.

ASSISTANT: Thank you for approaching us, Have a great day.