You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicholas Carter.

ASSISTANT: How can I help you?

USER: Book a ticket from LAX to OAK, to meet my school friend.

ASSISTANT: May I know your journey dates please?

USER: Sure, my trip starts on 05/15 and 05/17.

ASSISTANT: Delta airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been booking with flight-1993, have a safe journey.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.