You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to travel from SFO to EWR to watch Olympics event. Can you find any flights available?

ASSISTANT: Sure, I will find for you, may I know your name?

USER: My name is Patrick Hall.

ASSISTANT: Ok Hall, please provide me your airport codes. May I know your travelling dates?

USER: I am planning to travel on dates 10/18 and 10/20.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: Hall, there no flight found for your request.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Welcome. Thank you for choosing us.