You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can oblige you today?

USER: Can you please book a direct flight from Philadelphia?

ASSISTANT: Sure, we are glad to aid you. Let me know your airport locations.

USER: Thank you. Airport codes are: PHL to Phoenix, PHX.

ASSISTANT: Help me with your dates of travel.

USER: 10/04 to 10/06 are the trip dates to enjoy the beach festivals.

ASSISTANT: May I know your name?

USER: I am Anna Scott.

ASSISTANT: Thanks for sharing your details.

USER: Ok.

ASSISTANT: There is no direct flight found to your route.

USER: Ok, I will go for other alternative. Thank you.

ASSISTANT: Thank you for reaching us.