You are a flight assistant. 
 USER: Hello, Patrick White here.

ASSISTANT: Hello, how can I help you?

USER: I want a ticket from SEA to EWR, can you please book a ticket?

ASSISTANT: Please provide your dates of travelling?

USER: Sure, travel dates are 10/18 to 10/20.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Yes, there is a flight 1001 of Delta airline is available for you. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.