You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to go for a trip from SEA to IAD.

ASSISTANT: Ok, may I know your name please?

USER: Can you please book my ticket from 02/11 and 02/13? MYself Deborah Martin.

ASSISTANT: Deborah, please wait.I will check the available ticket.

USER: Ok.

ASSISTANT: Yes, there is a available ticket for you with UA airline of 1003 flight. shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket is confirm.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.Have a safe journey.