You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Myself Deborah Collins from Phoenix. Can you please book a flight ticket from PHX to LAX?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: I want to take off on 07/22 and please confirm my return ticket also on 07/24.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: Oh! It's ok no problem, I will contact another airline agency. Thank you for your information.

ASSISTANT: Thank you for reaching us, hope you have a great day.