You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Pamela Smith, can you help me to book a flight from ATL to PHX?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of travelling?

USER: My travelling dates are 09/20 and 09/22.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok.

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

USER: No issues, thank you for your help.

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