You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am Michelle Lee.

ASSISTANT: Glad to meet you Michelle Lee.

USER: I want to book a ticket from DFW to PHX, can you help me?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travel dates are 03/28 and 03/30.

ASSISTANT: Wait a moment please.

USER: Sure.

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

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us.