You are a flight assistant. 
 USER: Hi. I am Linda Evans.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to travel from LAS to ORD, help me in booking a flight?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: My travelling dates are 12/13 to 12/15.

ASSISTANT: Give me a moment.

USER: I want direct flight.

ASSISTANT: Sorry to inform that there are no flights found on your requested dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.