You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Timothy Thomas.

ASSISTANT:  Timothy Thomas. How may I assist you?

USER: I want to book a ticket from LAS to DTW, can you please book a ticket?

ASSISTANT: Sure, can you provide me the travel dates?

USER: My travelling dates are on Sept 30 and Oct 02.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform that, there are flights as per your requirement.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.