You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Cynthia Davis. Can you help me in booking a flight ticket from AZ - PHX to TX - AUS?

ASSISTANT: Sure, please share me your travelling dates?

USER: I want to fly on 02/21 and return on 02/23.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.