You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Joseph Parker.

ASSISTANT: Welcome to our travel agency Parker. How may I help you?

USER: Can you book a flight ticket from ORD to PHX?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please help me with travelling dates?

USER: I ma planning to move on 09/24 and back on 09/26.

ASSISTANT: Ok, please wait a minute.

USER: Yes, take your own time.

ASSISTANT: I am sorry for the inconvenience, there is no flight found in this route.

USER: Ok, no problem, thank you for your great service.

ASSISTANT: That's my pleasure.

USER: Welcome.

ASSISTANT: Thank you for consulting us.