You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me with booking a flight ticket from SFO to LAS?

ASSISTANT: Sure, I am happy to help you. May I know your name please?

USER: Rachel Roberts here.

ASSISTANT: Ok, let me know your class preference.

USER: I am comfortable with any class.

ASSISTANT: Is there any connection limit for you?

USER: I would be comfortable with single stop over.

ASSISTANT: Ok, help me with your planned dates.

USER: My travelling dates are from July 23-25.

ASSISTANT: Do you have any other concerns?

USER: My depart has to be in morning.

ASSISTANT: We found a connecting flight with a fare of 300 in 1012 Delta Airlines, shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.