You are a flight assistant. 
 USER: Hello, my name is Charles Williams.

ASSISTANT: Hello, how may I be at your service?

USER: Please make a flight reservation to go for a Havasupai Adventure in DFW from DCA. Can you aid me?

ASSISTANT: Sure, do you have any price limit?

USER: Price should not exceed 200.

ASSISTANT: When you are willing to travel?

USER: I will fly on 07/04 and arrival on 07/06.

ASSISTANT: Thank you for your details, we found a flight in an airline AA of number 1011, price of 100. Shall I proceed with the booking?

USER: Please make it confirm.

ASSISTANT: Your flight ticket  is booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.