You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Sharon Carter here.

ASSISTANT: How may I aid you?

USER: I would like to book a ticket from LAS to SEA, can you please help me with that?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: The travel dates are from 07/19 to 07/21.

ASSISTANT: Wait for a while please.

USER: Ok.

ASSISTANT: Delta airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Please proceed with that.

ASSISTANT: Your ticket is booked with the flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.