You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: Please assist me to book a ticket from PHX to DTW, can you please help to find a flight of normal cost?

ASSISTANT: Sure, may I know your connection limit?

USER: I need single connection.

ASSISTANT: When are you planning to travel?

USER: I would like to travel on Feb 01 and return on Feb 03.

ASSISTANT: May I know your name?

USER: My name is Lisa Martin.

ASSISTANT: Ok, let me check the availability.

USER: Sure.

ASSISTANT: Thanks for waiting, we regret to inform that there are no flights going on your way.

USER: Thank you for informing me.

ASSISTANT: Thank you for opting us.