You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I will travel from LGA to LAS for my project work, could you please help me to book my flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you. I will depart on Nov 19th and return back on Nov 21st.

ASSISTANT: May I know your name?

USER: My name is John Davis.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a flight having single connection.

ASSISTANT: Flight-1021 is available with JetBlue airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Yes, please book the ticket for me.

ASSISTANT: Your ticket has been reserved.

USER: Thank you very much for your help.

ASSISTANT: Thank you.