You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your good name?

USER: I am Melissa Perez.

ASSISTANT: How may I be of your service Melissa Perez?

USER: I want to book a  flight ticket to attend a workshop at TX-IAH on 09/03.

ASSISTANT: Ok. How much should the fare be?

USER: 500 is my price.

ASSISTANT: When would you like to return?

USER: 09/05 will be my return.

ASSISTANT: Can you provide me your source airport code?

USER: I would like to start from IL-ORD.

ASSISTANT: Ok, please give me a minute.

USER: oK.

ASSISTANT: We found an Spirit airline with flight number 1021 and price of 100 available for you.

USER: You can proceed booking with this airline.

ASSISTANT: Your booking has been processed.

USER: Thank you for your response.

ASSISTANT: Thank you for consulting us.