You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me in booking from IAH to BOS, as there is a business meeting to attend?

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

USER: My trip dates are Jul 15 to Jul 17.

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

USER: I am Susan Adams.

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

USER: I am comfortable in any class.

ASSISTANT: Let me know your connection limit?

USER: I need a connecting flight which return in evening.

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

USER: Sure. I prefer a normal-cost airline.

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

USER: No issue, thank you.

ASSISTANT: Thank you for choosing us.