You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please assist me to make a flight reservation as my meeting purpose.

ASSISTANT: Sure, let me know your airport codes?

USER: I will fly from LGA to DCA.

ASSISTANT: Can I know your travel dates?

USER: I have planed to travel on June 22nd and return on 24th.

ASSISTANT: Do you have any preferences for your journey?

USER: I want to depart at afternoon time and I don't want ant other specifications.

ASSISTANT: Ok, may I know your name to proceed further?

USER: Myself Janet Walker.

ASSISTANT: Spirit Airlines has a connecting flight with number 1021 for fare 300 which departs at  17:00 hours, shall I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.