You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Kevin Parker here. I want to book my round trip ticket from Houston IAH. Can you do this for me?

ASSISTANT: Sure, may I know your journey dates for better search?

USER: My journey dates are from 09/21 to 09/23.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: I found a flight with AA airlines available with price 100. Shall I book the ticket?

USER: Yes, please proceed it.

ASSISTANT: Your ticket is confirmed and the flight number is 1025.

USER: Thank you for your quick response.

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