You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Katherine Collins, can you please reserve a flight ticket with a fare of 5000?

ASSISTANT: Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: Do you need a whistle stop in between your journey?

USER: I want to take a break with in my journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I want to start on 04/08, my return date is on 04/10.

ASSISTANT: Please share your take off and landing points.

USER: I want to attend my friend marriage at Boston MA-BOS, so I want to start from Washington DC-DCA.

ASSISTANT: Thank you for giving your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting,  we are unable to provide a connecting flight for you. Shall I continue with the direct flight?

USER: That's fine, I will find out other alternative. Please do not proceed.

ASSISTANT: Ok, thank you for contacting us.

USER: Thank you for your effort.