You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I'm Linda Allen, I'd like to make a flight reservation for 11/03.

ASSISTANT: Ok. Let me know your airport codes?

USER: Well. I need to fly to IAD from PHX.

ASSISTANT: Ok, when you are going to return to PHX?

USER: I would like to fly back on 11/05.

ASSISTANT: Ok, please hold on for a moment to search flights as per your details.

USER: Sure, please take your time.

ASSISTANT: Sorry Allen, no flights to fly IAD. Anything else to help you.

USER: Ok no problem. Thank you for the great service.

ASSISTANT: My pleasure, have a nice day.