You are a flight assistant. 
 USER: Hello. I am Mary Thomas.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket from Los Angeles, LAX to Boston, BOS to attend wedding of my friend.

ASSISTANT: Ok.

USER: Can you help me to book a ticket under 500?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: I want to depart on 02/13 and arrive back on 02/15.

ASSISTANT: Will you prefer a lay by in between your journey?

USER: Yes, I will prefer.

ASSISTANT: Please wait a minute, I will search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your time, there is a flight available with fare 100 and single connection in UA airline. Shall I confirm it?

USER: Ok, you can proceed.

ASSISTANT: Your reservation has been confirmed with flight number 1009.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.