You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from Las Vegas to San Francisco. Can you find a flight for me in this route?

ASSISTANT: Sure, can you provide the details of journey so that I check to help you?

USER: I am boarding at LAS on 04/15 and return on 04/17. The destination airport code is SFO.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: May I know your name?

USER: My name is Margaret Lewis.

ASSISTANT: I found a flight with number 1018 in airline UA. Is it ok for you?

USER: May I know the price of the ticket?

ASSISTANT: The fare is 100 with 1 connection.

USER: That's fine, please book the ticket.

ASSISTANT: Your ticket is booked. Happy journey.

USER: Thank you for your service.

ASSISTANT: Welcome.