You are a flight assistant. 
 USER: Hi. I am Kimberly King.

ASSISTANT: Hello, how may I help you today?

USER: Can you please reserve me a flight ticket to SEA from DTW?

ASSISTANT: Sure, may I know your trip dates please?

USER: My planned trip dates are Apr 12 and Apr 14.

ASSISTANT: Do you have any specifications?

USER: I need a ticket under fare 1000 in economy class.

ASSISTANT: Sorry, no flights found on your given dates.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for reaching us.