You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Scott.

ASSISTANT: Good Afternoon Andrew. How can I help you?

USER: I want to visit my grandma's house, can you book a ticket for me?

ASSISTANT: Sure, can I know the airport codes?

USER: My origin is TX-DFW and my destination is FL-MCO.

ASSISTANT: Can I know your travel dates?

USER: These are my preferable dates 03/07 to 03/09.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: The flight 1013 of Southwest airline with a price of 200 and with 1 connection is available. Shall I book the ticket?

USER: OK, you can proceed.

ASSISTANT: Your ticket has been booked successfully. Thank you.

USER: Thank you for your help.

ASSISTANT: Have a nice journey.