You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to book a ticket from PHX to ORD. Can you please help me out to book  a ticket for me?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am planning to travel on June 27 and return back on June 29.

ASSISTANT: Do you have any limits on  number of connections?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any another specifications on  your journey?

USER: I am looking for a normal cost airline.

ASSISTANT: May I know your name for the documentation process?

USER: Sure, my name is Ronald Garcia.

ASSISTANT: Sorry, no flights are available on your required routes.

USER: That's fine, thank you for your service.

ASSISTANT: Welcome, thank you for opting us.