You are a flight assistant. 
 USER: Hello, Jack Hernandez here.

ASSISTANT: Hello Jack, How can I assist you today the best?

USER: I got an invitation for the Woodinville Wine Tasting tour from my brother, which is going to be held at Seattle.

ASSISTANT: Ok.

USER: Will you help me in booking a flight ticket with a price limit of 1000?

ASSISTANT: Sure, we can help you with that.

USER: Thank you.

ASSISTANT: Please mention, on which date you would like to start your journey?

USER: I would like to start on 09/02.

ASSISTANT: Ok, I need your selected airport codes that you wish to board and land on?

USER: I want to board from Washington, DC - IAD, to reach Seattle, WA - SEA.

ASSISTANT: Ok, kindly ensure your return date here?

USER: I need to catch return flight on 09/04.

ASSISTANT: Do you prefer any way station in between your journey?

USER: No, I prefer a direct flight.

ASSISTANT: Thank you for the details. Please wait, I will search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your patience. We are sorry to notify you that, there is no flight found in search to your route on your specified dates of journey.

USER: No problem, I will try to check out with another airlines.

ASSISTANT: Ok, Is there any other help you are expecting from us?

USER: No, Thanks for asking.

ASSISTANT: Thank you for choosing us, visit again.

USER: Thanks for your assistance.