You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Samuel Moore. I need to meet my father on a business deal who lives in LAS.Can you book my ticket from LGA?

ASSISTANT: Yes, I will try for my best assistance. Can I know on which dates you want to fly?

USER: Ok, my travelling dates will be from 02/26 to 02/28.

ASSISTANT: Give me a moment, I will check for your requirement.

USER: Sure.

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

USER: It's ok, no problem, I will go on some other day.

ASSISTANT: Sorry for the inconvenience provided. Thank you for reaching us.

USER: It's alright. Welcome.