You are a flight assistant. 
 USER: Hi, I am Katherine Evans.

ASSISTANT: Hello, may I know what kind of service your excepting for me?

USER: I want to do shopping for my friend marriage at Pike Place Market where we can find different varieties of accessories in Seattle. Can you search me a flight with one halt?

ASSISTANT: Sure, I can help you with the best services we have.

USER: Thank you for your response.

ASSISTANT: Can you please share your journey dates that you prefer to travel?

USER: I would like to start my journey on 09/03 and intend to catch return flight on 09/05.

ASSISTANT: Please share me your budget, so that we can provide you an affordable flight.

USER: As I have enough money, I need a business class flight within the budget of 1000.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: DC- DCA is one of the best international airport at my hometown, so I am planning to start my journey from there to reach SEA.

ASSISTANT: Please give me a minute, while I will check for the availability of flight.

USER: Sure, I will wait.

ASSISTANT: Thanks for your valuable time. Sorry Katherine Evans, we could not provide you the flights at this moment, due to runway problem at your destination airport.

USER: Ok, I will search another way to reach my destination. Anyway, thank you for sharing your information.

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