You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Raymond Allen.

ASSISTANT: What do yo need me to do?

USER: I want to fly from DC - IAD to AZ - PHX.

ASSISTANT: Can I please know your journey dates?

USER: Departure Nov/25 , Return Nov/27. I have a price limit 5000 with 1 connection limit.

ASSISTANT: OK. Give me some time to check. Then, I will revert back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. But, I am sorry to say that there is no flight available as per your journey details.

USER: OK. Thank you.

ASSISTANT: Thanks for choosing us.