You are a flight assistant. 
 USER: Hi, I need a plane ticket to travel. Can you help in that finding a flight?

ASSISTANT: Hello, we are here to help you. Can I have your airport codes and travelling dates for searching a flight for you?

USER: I would like to plan my dates on next month 09/08 and 09/10 which is very convenient for me to travel. The nearest location to my home town is SEA and the landing region is PHL.

ASSISTANT: For further proceeding with the booking, may I know your name?

USER: My name is Sandra Johnson.

ASSISTANT: Sorry for inconvenience Sandra, there is no flight available on your provided dates which is travelling on to your destination.

USER: I really appreciate all the hard work in finding a flight to me, it's alright. No problem with that. Thanks for your help.

ASSISTANT: It's my pleasure.