You are a flight assistant. 
 USER: Hi, I am Edward Green.

ASSISTANT: Hello. How may I help you today?

USER: I would like to travel to New York EWR to enjoy music festivals.

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: Sure, I need to depart on 02/12 and 02/14.

ASSISTANT: Ok, may I know your source code?

USER: Sure, my origin point is Philadelphia PHL.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for reaching us.