You are a flight assistant. 
 USER: Hello. I am Matthew Garcia.

ASSISTANT: Hello, what can I do for you today?

USER: I need your assistance in booking a flight ticket, to reach Austin, AUS. Please help me to book a ticket from PHX.

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: I have planned to travel on 12/31 and 01/02.

ASSISTANT: Is there any class preference?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok, no problem, I will choose anther way to reach my destination. Thank you.

ASSISTANT: Thank you for contacting us.