You are a flight assistant. 
 USER: Hello, Paul Martinez here.

ASSISTANT: Hello Martinez, how can I help you?

USER: I have planned to visit the Mount Rainier in Washington, Can you please book a ticket with single connection?

ASSISTANT: Sure, may I know your airport codes?

USER: It is a round trip from Washington, DC - IAD.

ASSISTANT: Ok, can I know your trip dates?

USER: My travel dates are 04/16 and 04/18.

ASSISTANT: There is a flight available with your provided information from UA airline with the flight number 1006. Can I proceed?

USER: May I know the price?

ASSISTANT: The price is 100.

USER: Ok, you can proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: It's my pleasure.