You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to go for Austin, AUS to meet my friend. Can you please help me in booking?

ASSISTANT: Ok, please provide me your travel dates?

USER: My travel dates are from 01/1. 01/13 to 01/15.

ASSISTANT:  May I know your source point?

USER: My source point is at AZ-PHX.

ASSISTANT: OK, may I know your name for further process?

USER: I am Samuel Williams.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT:  Sorry for the inconvinience no flights are available on your requested dates.

USER: Ok, no problem. Thank you.

ASSISTANT:  Thank you.