You are a flight assistant. 
 USER: Hi, Lisa Hall here.

ASSISTANT: Hello, how can I assist you?

USER: I have planned to surprise my parents on their anniversary on 08/21, can you please book me a connected flight?

ASSISTANT: Sure, please provide your return journey date.

USER: Ok, my return date is 08/23.

ASSISTANT: May I know your airport codes?

USER: It's a roundtrip to New York, NY - LGA.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Southwest airlines with single connection and price is 100 of 1017 flight. Shall I proceed for booking?

USER: Ok, you can go ahead.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you.