You are a flight assistant. 
 USER: Hi, my name is Timothy Lopez.

ASSISTANT: Hello. How can I aid you?

USER: I need to book a connecting flight from Seattle to attend my sister's engagement at IAD.

ASSISTANT: Please let me know your source airport code.

USER: SEA is my source airport.

ASSISTANT: When you want to travel?

USER: I would like to travel on 03/07 and 03/09.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being patient. We found a Hawaiian airline,flight number:1019 and the price is 100.

USER: You can proceed for booking with this airline.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.