You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: I need to travel from BOS to LAS, can you help me with that?

ASSISTANT: Sure, I am happy to help you with that.  Can I have your travel dates please?

USER: My trip dates are 03/19 ans 03/21.

ASSISTANT: Ok, please let me know the timings  of your journey.

USER: My return time must be in evening.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Can I have your good name please?

USER: I am Mark Davis.

ASSISTANT: Hawaiian airlines running a flight in your route with connection 1 and the ticket fare is 100 in economy class.  Shall I proceed with booking?

USER: Yes, proceed.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1012.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a great journey.