You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Can you aid me to book a flight ticket from HOU to DFW?

ASSISTANT: Sure, may I know the travelling dates?

USER: My trip dates are Apr 14 and Apr 16 respectively.

ASSISTANT: Do you have any connection limit?

USER: I am ok with any connecting flight.

ASSISTANT: May I know your name?

USER: Joshua Hill here.

ASSISTANT: Please wait a minute.

USER: Ok.

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

USER: Thank you.

ASSISTANT: Thank you for opting us.