You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to change my reservation as I am planning to go for pilgrimage, can you please help me out?

ASSISTANT: Sure, I will help you with that. Can you please share your good name to check in the existing reservation status?

USER: Thomas Hall here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient, we found a reservation on your name. Can you please share your travelling dates?

USER: I am travelling on these dates March 20th and 22nd.

ASSISTANT: May I know your source and destination airport codes?

USER: I am travelling from LGA to PHX.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I prefer single connected flight.

ASSISTANT: Is there any airline preference?

USER: I don't have any airline preference.

ASSISTANT: Do you have any other specifications?

USER: I prefer return time in the afternoon.

ASSISTANT: Thanks for your details, we found a connecting flight 1012 in Delta airline with fare 100 and class is economy. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your services.

ASSISTANT: Thank you for availing us.