You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to book a ticket from ORD to DFW, can you help me?

ASSISTANT: Your travelling dates please?

USER: My travel dates are 11/12 and 11/14.

ASSISTANT: May I know your name please?

USER: I am Donna Adams.

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

USER: No problem, thanks for checking.

ASSISTANT: Thank you for choosing us.