You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Walker.

ASSISTANT: Melissa, how can I assist you?

USER: I have planned to visit Denver to enjoy Summer vacation. Will you please book a flight ticket?

ASSISTANT: Sure. Can you provide your travel details?

USER: Airport codes are MSP and DEN and my dates of travel will be on 02/19 and 02/21. Please verify the price under 1000 with connection 1.

ASSISTANT: Flight number 1010 of Frontier airlines is matching with your travel details.

USER: Ok, please confirm it.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.