You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Dorothy Rodriguez, can you help me to book my flight ticket to IAH from LGA in the month of January?

ASSISTANT: Your travelling dates please?

USER: My travelling dates are 01/19 and 01/21.

ASSISTANT: I am sorry no flights found on your route.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for choosing us.