You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I am Brenda Scott. I need to book a flight ticket from IAD to PHL, Can you please help me for booking?

ASSISTANT: Sure, Please help me with your travel dates.

USER: I would like to travel on 06/02 to 06/04.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport. Thank you for availing us.

USER: Ok, no problem. Thanks for your information.