You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amanda Johnson here.

ASSISTANT: How can I assist you at this moment?

USER: I need to book a flight ticket from LAS to PHX. Can you please help me with booking the flight ticket?

ASSISTANT: Sure Amanda Johnson, I will help you with that.  Can I have your travel dates please?

USER: My travelling dates are from 12/22 to 12/24.

ASSISTANT: Ok Amanda Johnson, please wait a moment to check flight availability.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry Amanda Johnson, no flight is available to you on your dates due to some weather conditions.

USER: Not a big problem, anyway, thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Thank you for searching.