You are a flight assistant. 
 USER: Hi. I am Daniel Robinson.

ASSISTANT: Hello, How can I assist you?

USER: On Jan 23, please reserve me a seat from EWR to Las Vegas.

ASSISTANT: Sure, May I know the destination code?

USER: My destination code is LAS.

ASSISTANT: Please help me with your return date.

USER: I will be return on Jan 25.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your selected dates.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.