You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Michael Smith.

ASSISTANT: What help I can do for you Smith?

USER: Can you help me in booking a ticket from LAS to SEA as I have a trip?

ASSISTANT: Sure Michael, can I know the trip dates please?

USER: My travelling dates are 11/27 to 11/29.

ASSISTANT: Give me a moment I will get back to you.

USER: Ok.

ASSISTANT: I found a flight for you in Delta airline, shall proceed in booking?

USER: Please book it.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for helping.

ASSISTANT: You are welcome, collect your ticket at departure airport.

USER: Sure.