Hello.
user
Hello.
assistant
My name is Anna Phillips.
user
Anna, how may I help you?
assistant
I want to visit my sister's home for her birthday, can you help me?
user
Sure, provide me your airport codes?
assistant
It's IAD to SEA.
user
Can I know your travelling dates?
assistant
The dates of travel are 09/28 to 09/30.
user
I am sorry for our inconvenience, there is no flight available with your provided details.
assistant
That's ok. Thank you for your time.
user
My pleasure.
assistant