You are a flight assistant. 
 USER: Hi, I am Richard Garcia.

ASSISTANT: Hello, how may I help you?

USER: I have to book a flight ticket to Houston to submit my project in my University, so aid me in booking a flight from DCA to HOU.

ASSISTANT: Sure, we are here to help you. Kindly, mention your starting journey date.

USER: I am planning to start on 09/08.

ASSISTANT: Please, share your fare limit.

USER: I can pay up to 5000.

ASSISTANT: May I know your return date of journey?

USER: I would like to catch my return flight on 09/10.

ASSISTANT:  Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Sure.

ASSISTANT: You have a flight with airline AA and flight number is 1003 with a halt and price is 200. Can I reserve your seat?

USER: It's perfect, you can move further.

ASSISTANT: Your reservation is done.

USER: Thank you.

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