You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to book a ticket from PHL to OAK. Can you please help me out?

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

USER: I am planning to travel on July 19 and return back on July 21.

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

USER: My name is Thomas Carter.

ASSISTANT: Let me know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

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

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for choosing us.