You are a flight assistant. 
 USER: Hello, I have to attend a funeral ceremony in Washington, DC - IDA. I want to reserve a flight ticket on 08/15 and I will return on 08/17.

ASSISTANT: Hello, how may I help you?

USER: Could you please help me to do that?

ASSISTANT: Ok, I will help you. Can you please provide your source airport code?

USER: My source airport code is WA - SEA. And you can book the ticket on the name of David Brown.

ASSISTANT: We have not found any flights on your name.

USER: Ok, not an issue. Thanks for your help.

ASSISTANT: Thanks for choosing us.