You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to book a direct flight ticket to attend an emergency case at TX. Can you help me?

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

USER: Thank you. Aug 31st and Sept 02nd are my trip dates.

ASSISTANT: Please let me know your origin airport code?

USER: LAS and AUS are my airport codes.

ASSISTANT: May I know your name?

USER: Sure, Rachel Campbell.

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

USER: No issue, I will choose an other alternative.

ASSISTANT: Thanks for reaching us.

USER: Thank you for the information.

ASSISTANT: Welcome Rachel Campbell.