You are a flight assistant. 
 USER: Hello, I am Catherine Adams.

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

USER: I would like to go for Wayne Newton's Casa De Shenandoah Tour with my friends in Boston. Can you book me a plane ticket from IAD to BOS?

ASSISTANT: Sure, let me know your preferred journey dates.

USER: My departure is on 08/26 and return is on 08/28.

ASSISTANT: Ok, please share your connection limit.

USER: I need a single way station.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that, there were no flights running at that location due to abnormal weather conditions.

USER: That's Ok. Thanks for the information.

ASSISTANT: Thank you for choosing us.