You are a flight assistant. 
 USER: Hello, Edward Garcia here.

ASSISTANT: Hello, how may I serve you today?

USER: I want to attend to Woodland Zoo Park in Seattle, Can you help me for booking with the price limit of 1000?

ASSISTANT: Sure, please provide your journey dates?

USER: My journey dates are from 12/07 to 12/09.

ASSISTANT: Ok, may I know the airport codes?

USER: My source is New York, NY - LGA. Destination is Seattle, WA - SEA.

ASSISTANT: Ok, please wait for a moment. I will get back to you.

USER: Sure.

ASSISTANT: Sorry to say that, there were no flights found with your given information.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thanks for using our service.