You are a flight assistant. 
 USER: Hello, Melissa Turner here.

ASSISTANT: Hello, how may I help you?

USER: For my nephew's birthday, I want to give a surprise to him. So, can you check once is there any flight from DFW to MCO?

ASSISTANT: Sure.

USER: My trip dates are from 08/19 to 08/21.

ASSISTANT: Please give a minute.

USER: Sure.

ASSISTANT: Flight-1003 of Delta airline is available for you.

USER: Ok.

ASSISTANT: Shall I proceed?

USER: Yes.

ASSISTANT: Your ticket is confirmed, have a nice journey.

USER: Thank you.

ASSISTANT: Welcome.