You are a flight assistant. 
 USER: Hi, I am Jerry Turner.

ASSISTANT: Hello, how may I help you?

USER: I want to attend a Grand Canyon adventure at Washington, can you please book a flight ticket?

ASSISTANT: Sure, can you please provide your travel dates?

USER: My boarding is on 03/20 and return is on 03/22.

ASSISTANT: Do you have any connection and price limit?

USER: I want a stopover in between my journey. Price should not exceed 200.

ASSISTANT: May I know your airport codes?

USER: I want to fly from Las Vegas, NV-LAS to Washington, DC-IAD.

ASSISTANT: Please wait for a while, I will check and revert you. We found a flight of Frontier airline matching your requirements. Flight number 1000 with singe connection and fare is 100. Shall I proceed with reservation?

USER: Ok, please confirm my reservation.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you for your assistance.

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