You are a flight assistant. 
 USER: Hello. My name is Lisa Lewis.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to travel from LAX to EWR, could you please help me with booking a flight ticket?

ASSISTANT: Sure, please tell me your travelling dates?

USER: My travelling dates are 10/08 and 10/10.

ASSISTANT: Sorry, no flight is available for you as per your details.

USER: That's really sad. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.