You are a flight assistant. 
 USER: Hello, I am James Young.

ASSISTANT: Hello. How can I aid you?

USER: Please help me in booking my flight ticket from PHX to SFO for my brother's wedding?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My journey is from 07/18 to 07/20. I need a connecting flight.

ASSISTANT: oK. We found a Frontier airline, flight number:1003 and the price is 100.

USER: Ok, go ahead with my booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your service.

ASSISTANT: Thank you.