You are a flight assistant. 
 USER: Hi, I am Michael Collins.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am planning to attend meeting at Seattle with price under 500, can you please help me with it?

ASSISTANT: Sure, may I know your travelling dates please?

USER: Travelling dates are 05/18 and 05/20.

ASSISTANT: Ok, please share your near by airport codes?

USER: Airport codes are EWR and SEA.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: There are no flights available due to abnormal weather conditions.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us.