You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mary Campbell here.

ASSISTANT: Mary, how can I assist you?

USER: I would like to move to Las Vegas as I owned a new house there, please help me in booking the ticket from OAK to LAS.

ASSISTANT: Sure. Congratulations. Please provide your journey dates.

USER: My journey date is from 02/04 to 02/06.

ASSISTANT: Please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Flight number 1010 of Frontier airlines is available for you.

USER: Please book it for me.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.