You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket from Philadelphia, PA-PHL to Seattle, WA-SEA.

ASSISTANT: Sure, We are here to address you.

USER: Thank you.

ASSISTANT: What dates would you like me to book this plane ticket for?

USER: My trip dates are 11/12 and 11/14.

ASSISTANT: How much amount can you spend to purchase your ticket?

USER: I can afford up to 500.

ASSISTANT: May I know your name?

USER: Steven Campbell here.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: Sure.

ASSISTANT: We are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.