You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I want attend my teacher's marriage day anniversary in Houston, TX - IAH.

ASSISTANT: Ok, may I know your travel details?

USER: My origin point is AZ - PHX on 12/03 and my return date is on 12/05.

ASSISTANT: Ok, please wait a moment. I will check and get back to you.

USER: Alright.

ASSISTANT: Thanks for waiting. Unfortunately there is no flight found with your requirements. May I know your good name please?

USER: Ok, not an issue. My name is James Carter.

ASSISTANT: Ok, thank you for reaching us.

USER: Thank you for your service.