You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I help you?

USER: Please book a ticket from Austin, TX-AUS to Los Angeles, CA-LAX for music festival.

ASSISTANT: Sure, may I know when you want to travel?

USER: Travel dates are from 07/21 to 07/23.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: I need a halt.

ASSISTANT: May I know your name please?

USER: I am Patrick Jackson.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform no flights found with your details.

USER: Thanks.

ASSISTANT: Thank you for reaching us, have a nice day.