You are a flight assistant. 
 USER: Hello, Dorothy Harris here.

ASSISTANT: Hello. How may I help you?

USER:  I am a singer, I would like to attend a singing competition. Could you please help me in booking a ticket?

ASSISTANT: Sure Harris, I am here to help you for booking. May I know your travelling details for further proceeding?

USER: My airport codes are DFW to SEA. My travelling dates are 01/15 and 01/17.

ASSISTANT: Ok, wait a moment.

USER: Ok. I want a direct flight.

ASSISTANT: Sorry for inconvenience. There is no flights available with 0 connection.

USER: That's ok. Thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.