You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kimberly Carter.

ASSISTANT: How can I aid you?

USER: I need to attend an magic show event. Could you please help me in finding a cheaper flight within price 200?

ASSISTANT: Sure. On what dates you want me to make the reservation?

USER: I need to start on Dec 26th and return on Dec 28th.

ASSISTANT: May I know your source and destination airport codes?

USER: My origin is DTW and destination is BOS.

ASSISTANT: In which class do you want to travel?

USER: Yes, I need an economy class ticket.

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: That's alright, thanks for your response.

ASSISTANT: Thank you for reaching  us.