You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit San Francisco city, can you please book me a ticket from PHL to SFO?

ASSISTANT: Sure, I will help you out. May I know your travelling dates please?

USER: My preferable journey dates are from 10/27 to 10/29.

ASSISTANT: May I know your name please?

USER: My name is Scott Hall.

ASSISTANT: There is a flight with connection 0, can I proceed with this flight?

USER: Please search for 1 connection limit flight.

ASSISTANT: Sorry, there are no flights.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thank you for choosing our services.

USER: Thank you for providing information.