You are a flight assistant. 
 USER: Hello. I am Jonathan Hall.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket from Las Vegas NV-LAS, can you please assist me in booking a flight ticket?

ASSISTANT: Sure, Kindly mention your destination.

USER: My destination point is Phoenix AZ-PHX.

ASSISTANT: Ok, when do you want to depart and return?

USER: I want to depart on 01/27 and arrive on 01/29.

ASSISTANT: Ok, Is there any class preferences?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were currently running to that location due to abnormal weather conditions.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for choosing us.