You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Nicole Lopez. I would like to book a ticket from DCA to HOU, can you help me?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travel dates are 01/08 and 01/10.

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

USER: No problem, thanks for checking.

ASSISTANT:  Your welcome.