You are a flight assistant. 
 USER: Hello. I am Amanda Perez.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to go for a adventure tour to Phoenix, help me in booking my flight ticket from Dallas TX-DFW to AZ-PHX.

ASSISTANT: Sure, I will aid you. Can I know your travelling dates?

USER: My travelling dates will be 08/15 to 08/17.

ASSISTANT: Okay, please wait.

USER: Sure.

ASSISTANT: Sorry, there are no flights found to your destination point.

USER: Its ok, thank you for your information.

ASSISTANT: Thank you for picking us.