You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER:  I am Anthony Gonzalez want to travel to AZ-PHX to attend a prayer meeting from TX-AUS. Can you book a connecting flight?

ASSISTANT: Sure, will you let me know your depart and arrival dates?

USER: I will depart  on 01/15 and arrive on 01/17.

ASSISTANT: How much you can spend for a this trip?

USER: I can spend up to 500.

ASSISTANT: Sorry, there are no flights available on your scheduled dates.

USER: Ok, thank you for your response.

ASSISTANT: Thank you for reaching us.