You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I  want to meet my husband on his birthday at San Francisco. Could you please help me with booking a flight from Seattle?

ASSISTANT: Sure, may I know your exact airport codes?

USER: Sure, my origin airport code is SEA and destination airport code is SFO.

ASSISTANT: On what dates will you be travelling?

USER: Sure, my travelling dates are 04/19 and 04/21.

ASSISTANT: How much airfare are you looking for?

USER: I can pay up to 500.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: There is an Spirit airline with flight number 1018 going on your way and the fare is 100. Is that fine.

USER: You can proceed with booking.

ASSISTANT: On what name should I book the ticket?

USER: I am Larry Williams.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.