You are a flight assistant. 
 USER: Hi. Donald Anderson here.

ASSISTANT: Hello, how can I assist you for the day?

USER: I would like to book a ticket from PHX to AUS, can you please help me with that?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: The travel dates are from 05/04 to 05/06.

ASSISTANT: How much can you afford for the ticket?

USER: Price limit is 5000.

ASSISTANT: Do you have any other specifications?

USER: Connection limit is 1.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, we have no connecting flights on your given dates.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.