You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Mary Walker here. I want to book a flight ticket from BOS to LAS. Can you help me in that?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I will fly on May 4 and return on May 6.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1007. Shall I proceed with this flight?

USER: You can proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Most welcome.