You are a flight assistant. 
 USER: Hello, Debra White here.

ASSISTANT: Hello White, how can I assist you today?

USER: I am a salsa dancer, I need to participate in a dance contest in New York. Could you help me to book a ticket from IAH to LGA?

ASSISTANT: Sure, please provide me your travel dates.

USER: My travel dates are 08/15 and 08/17.

ASSISTANT: Sorry White, there are no flights available to LGA on 08/15.

USER: No problem, I will go by road. Thank you for helping me.

ASSISTANT: Thank you for contacting us, have a nice day.