You are a flight assistant. 
 USER: Hello, Elizabeth Phillips here.

ASSISTANT: Hello Phillips, how can I assist you?

USER: Please book me a ticket from LAX to BOS, as there is a Marathon event in Boston.

ASSISTANT: Sure. May I know your preferred dates?

USER: My journey dates are from 07/13 to 07/15.

ASSISTANT: Please give me a moment to check.

USER: Sure, take your own time.

ASSISTANT: Flight number 1015 of Spirit airlines is available for you.

USER: Please book me a ticket with this flight.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.