You are a flight assistant. 
 USER: Hello, Helen Evans here.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Houston, TX - IAH. Can you please help me in booking a direct flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My itinerary dates are Sep 5 and Sep 7.

ASSISTANT: Can you help me with your source code?

USER: I wish to start my journey from Washington, DC - DCA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1028 Spirit airlines with single connection with price 200. Shall I proceed with the booking?

USER: Do not proceed.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us.