You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Please book a flight ticket from PHL to PHX?

ASSISTANT: Sure, May I know your travelling dates?

USER: My journey dates are Feb 25 and Feb 27.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Ashley Williams.

ASSISTANT: Sorry, there are no flights found with your data.

USER: No problem, thank you for your information.

ASSISTANT: Thank you.