You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicholas Lewis.

ASSISTANT: How may I guide you today?

USER: Can you please reserve me a flight ticket from Las Vegas, NV - LAS to Boston, MA - BOS?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: My trip dates are 11/22 - 11/24.

ASSISTANT: Do you have any class preference?

USER: I do not have any class preferences but please make sure that depart time should be in the morning.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure.

ASSISTANT: I have found a flight with 1 connection having with the fare of 100 provided by Hawaiian airlines in economy class. Are you ok with this flight?

USER: Please reserve, if it's depart time is in the morning.

ASSISTANT: Yes, it is available in morning time only. Your ticket has been confirmed in flight number 1011.

USER: Please reserve. Sorry, thank you for your help.

ASSISTANT: Thank you for reaching to our services, hope you have a great journey.