You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Could you please book a flight ticket to Los Angeles with a business class?

ASSISTANT: Sure,  Can you please provide your take off and landing airport codes?

USER: I want to take off from PHX and land at LAX.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My journey dates are May 11 and Mar 13.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Can you please recheck your journey month?

USER: Sorry, my return date is May 13.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: My name is Steven Green.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.