You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Shirley Perez. Please book a connecting flight from JFK to IAH.

ASSISTANT: Ok, on which dates you are planning to go?

USER: My travelling dates are 06/12 and 06/14.

ASSISTANT: Do you have any class preferences?

USER: No, but I need return ticket in the afternoon.

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

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for contacting us.