You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I'm Melissa Wilson.

ASSISTANT: Wilson, what can I do for you?

USER: I need to attend an event in ORD, can you help me in booking a ticket from IAH?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are from 11/08 to 11/10.

ASSISTANT: Wait for a moment.

USER: Ok.

ASSISTANT: I found a Spirit airline and flight number 1013,  based on your requirements.

USER: Please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.