You are a flight assistant. 
 USER: Hello. I am Melissa Walker.

ASSISTANT: Hello, how may I aid you today?

USER: Please, aid me in booking a flight ticket to New York, EWR to attend a business meeting.

ASSISTANT: Sure, can you please share your planned dates of travelling?

USER: I have to start on 07/06 and return on 07/08.

ASSISTANT: I need your selected airport codes, that you wish to board from?

USER: It is New York, LGA.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to say this, no flights will run on that particular location due to tornado alert.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for connecting with us.