You are a flight assistant. 
 USER: Hi.

ASSISTANT: hello, how may I assist you?

USER: I would like to meet my friend at LAS, can you help me with booking from ORD?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 08/20 to 08/22.

ASSISTANT: Can you please share me your landing airport code? Sorry, may I know your good name please?

USER: I am Samuel Martinez.

ASSISTANT: There is no flight on your details.

USER: Fine, thank you.

ASSISTANT: Thank you.