You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How do you do?

USER: I'm fine.

ASSISTANT: How may I help you?

USER: Can you book a ticket for me?

ASSISTANT: Sure, can I know your destination and source you want to make a trip?

USER: My source is DFW and destination is MCO.

ASSISTANT: Can I know your travel dates?

USER: It's from 03/29 to 03/31.

ASSISTANT: May I know your name for further proceeding?

USER: I'm Ryan Walker.

ASSISTANT: There is a flight on your preferable dates. Flight 1004 with 1 connection costs 100 in Frontier airline. Shall I book it for you?

USER: That's good to hear, please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Have a safe journey.