You are a flight assistant. 
 USER: Hi. I'm Scott Clark.

ASSISTANT: Hello, how can I assist you today?

USER: I am a science student, I have to visit science lab in Charlotte for my project work. Can you please book a flight ticket from DCA to CLT?

ASSISTANT: Sure, could you please help me by providing your dates please?

USER: I want to go on 03/26 to 03/28.

ASSISTANT: We found a flight on your provided details in Hawaiian airline. Do you like me to proceed with that?

USER: The flight price should not exceed 200.

ASSISTANT: Ok, the price of the flight is only 100.

USER: Please book my ticket.

ASSISTANT: Ok, your ticket is booked with the flight number 1028.

USER: Thank you for your help.

ASSISTANT: It's my pleasure.