You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need to travel from IAD to HOU, can you help me in doing a reservation?

ASSISTANT: Sure, may I know the travelling dates?

USER: June, 15 and June, 17 are my travel dates.

ASSISTANT: Do you have any connection limit?

USER: I need direct flight.

ASSISTANT: May I know your name?

USER: Carolyn Garcia here.

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

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for opting us.