You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I have to attend my grandson's birthday party, could you book a ticket from PHL to SEA?

ASSISTANT: Sure, please provide me your dates of travelling?

USER: My travel dates are 05/19 and 05/21.

ASSISTANT: There is a flight matching your dates and codes. Can I proceed?

USER: You can proceed.

ASSISTANT: May I know your name?

USER: I am Rachel Hernandez.

ASSISTANT: Your ticket has been confirmed with 1028 flight number, and Delta airline.

USER: Thank you for your ongoing valuable information.

ASSISTANT: Welcome.