You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to travel from PHX to LAX, can you help in this?

ASSISTANT: Sure, can I have your travelling dates?

USER: My travelling dates are from 08/17 till 08/19.

ASSISTANT: Yes, may I know your name please?

USER: Myself Timothy Hill.

ASSISTANT: Sorry Hill, no flight's found on your dates.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.