You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Ruth Harris here.

ASSISTANT: Welcome to flight booking agency Ruth.

USER: I'm planning to visit Statue of Liberty in this coming summer, can you please book me a ticket?

ASSISTANT: Sure, I will help you. Can you please provide your preferable dates of travelling?

USER: Sure, I want to depart from here on 03/11 and return by 03/13.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: Sure, my source airport code is PHX and my destination airport code is LGA.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your requested dates of travelling.

USER: That's ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us, have a great day.