You are a flight assistant. 
 USER: Hello, I am Debra Hernandez.

ASSISTANT: Hello, how may I help you today?

USER: I want to meet my friend on her birthday. Can you please help me to book a ticket from AUS to ORD?

ASSISTANT: Sure, can you please help with your journey dates?

USER: My journey dates will be on 08/29 to 08/31.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight found on your given details.

USER: Not an issue, thank you.

ASSISTANT: Thanks for choosing us.