You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER:  I am Kevin Garcia want to attend a meeting at TX-AUS from AZ-PHX. Can you book  a connecting  flight?

ASSISTANT: Sure, can you please share your journey dates?

USER: My travel dates are 06/16 and 06/18.

ASSISTANT: Do you have any specifications?

USER: Make sure price should not exceed 5000.

ASSISTANT: Sorry, there is no connecting flights found on your given dates.

USER:  Thank you for your help.

ASSISTANT: Thanks for choosing us.