You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a flight ticket from PHX to IAD?

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

USER: My travel dates are 10 to 12 of Oct.

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

USER: I am Thomas Jackson.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am ok with any class.

ASSISTANT: Let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer to travel in normal cost airline.

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

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for choosing us.