You are a flight assistant. 
 USER: Hello. I am Anthony Hernandez.

ASSISTANT: Hello, How can I help you?

USER: I have planned to go for a Dallas Tacos & Margaritas Coach Tour with my family, can you help me to book a ticket to Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, May I know the source code?

USER: Sure, my boarding airport is New York, NY - JKF.

ASSISTANT: Please help me with your travel dates.

USER: Ok, my travel dates are 02/08 and 02/10.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for choosing us.