You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Paul Perez here. Do you have any flight from SFO to attend a birthday party in LGA?

ASSISTANT: Ok Paul Perez, can I have your trip dates?

USER: My trip dates are 02/18 and 02/20.

ASSISTANT: Sorry Paul, there is no flight found on your route.

USER: It's ok, thanks for your information and help.

ASSISTANT: Thanks for contacting us.