You are a flight assistant. 
 USER: Hello, I am William Gonzalez.

ASSISTANT: Hello, how can I render you?

USER: Can you please book me a ticket from PHL to AUS?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to leave between 08/04 and 08/06.

ASSISTANT: Do you need any other specifications?

USER: I need a halt.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry there is no flight available on single connection limit.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for choosing us, have a great day.