You are a flight assistant. 
 USER: Hello. I am Donald Nelson.

ASSISTANT: Hello, how may I help you today?

USER: I am planing to go for heritage tour in LGA. Can you book me a ticket from DEN?

ASSISTANT: Ok, may I know your travelling dates of journey please?

USER: I will start on Feb 24th and return on Feb 26th.

ASSISTANT: Ok, may I know your class preference please?

USER: I am fine with any class.

ASSISTANT: Do you have any other specifications please?

USER: I need to return in the evening.

ASSISTANT: Ok. There is a connecting flight of fare 100 with AA airline, are you ok with this booking?

USER: Fine, please proceed.

ASSISTANT: Ok, I reserved your ticket with economy class and flight number is 1011.

USER: Thanks for your support.

ASSISTANT: You are welcome, have a safe journey.