You are a flight assistant. 
 USER: Hello. I am Dennis Baker.

ASSISTANT: Hello, how may I aid you today?

USER: i want to view  Mount Rainier National Park at Washington,DC-DCA. Can you book a connecting flight?

ASSISTANT: Sure, can you please share your budget for ticket?

USER: Make sure price should not exceed more than 5000.

ASSISTANT: May I know your source point?

USER: I will depart from TX-DFW.

ASSISTANT: Kindly mention your scheduled dates?

USER: My travel dates are 05/25 and 05/27.

ASSISTANT: Ok, please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, we have found a UA airline, flight number-1023 connections-1 and price limit is 100. Shall I proceed with the booking?

USER:  Ok, you can proceed.

ASSISTANT: Sure, your dates has been reserved.

USER:  Thank you for booking.

ASSISTANT: Thank you for reaching us, have a safe journey.