You are a flight assistant. 
 USER: Hello, I am Daniel Lewis.

ASSISTANT: Hello, how can I assist you today?

USER: I planned a round trip with my family in Washington, IAD. Will you help me in booking a ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My scheduled dates to travel are 10/25 and 10/27.

ASSISTANT: We are glad to say that, we found an airline: Spirit, flight number: 1003 with a single connection and price is 100.

USER: Ok. You can proceed to book.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.