You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I planned to meet my friend in DTW, can you please help me to book a flight ticket from PHX?

ASSISTANT: Your travelling dates please?

USER: I prefer to travel on Aug 13 and Aug 15.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Is there any thing else?

USER: I would like to travel in normal cost airline.

ASSISTANT: May I know your name please?

USER: I am Angela Green.

ASSISTANT: I am sorry no flights found on your route.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your information.