You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jonathan Collins here.

ASSISTANT: How can I help you today?

USER: I want to meet my nephew, so please book my ticket from SFO to DCA.

ASSISTANT: Sure, I am gleeful to help you in booking. Will you please share your travel dates?

USER: I am planning to leave on 09/28 and return on 09/30.

ASSISTANT: Flight 1000 in AA airlines is available for you with 1 connection. Shall I proceed?

USER: Please book my ticket.

ASSISTANT: Your booking is confirmed.

USER: Thank you for assisting me.

ASSISTANT: Welcome, have a safe flight. Thank you for opting us.