You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Melissa Walker. I want to do my Animation course, could you please help me in booking my ticket.

ASSISTANT: Sure, can I know your travel airport codes?

USER: Sure, my airport codes are from SFO to DTW.

ASSISTANT: Can I know your travel dates?

USER: My travelling dates are from 01/12 to 01/14.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: The flight 1002 of Spirit airlines is available on your request. Shall I book the ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Welcome.