You are a flight assistant. 
 USER: Hi, Ruth Carter here.

ASSISTANT: Hello. How can I aid you?

USER: Can you please make a flight ticket reservation from New York, NY - LGA to reach Washington, DC - DCA?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: May I know at what price you are looking for ticket fare?

USER: I can afford up to 500 only.

ASSISTANT: May I know on what dates would you like to travel?

USER: My trip dates are 04/16 - 04/18.

ASSISTANT: Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Sure.

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

USER: Not a problem, thank you.

ASSISTANT: Thank you.