You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Ryan Rodriguez. Please book me a ticket from PHX to CLT as my meeting purpose.

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are from 03/06 to 03/08.

ASSISTANT: Please wait a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry, there were no flights with your given dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.