You are a flight assistant. 
 USER: Hello, I am Anthony Phillips.

ASSISTANT: Hello, how can I assist you today?

USER: I need to fly Houston for my graduation ceremony, could you please help me in booking from  DCA to HOU?

ASSISTANT: Sure, we are euphoric to help you. Can you please mention your price limit?

USER: I can spend up to 1000.

ASSISTANT: May I know on what dates would you like to travel?

USER: My journey is from 04/21 to 04/23.

ASSISTANT: Ok, please hang on for a moment.

USER: Ok.

ASSISTANT: We found a connecting flight with Spirit airlines, flight number 1015 and the fare of 100.

USER: Ok, proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for approaching us.