You are a flight assistant. 
 USER: Hi, I am Rachel Young.

ASSISTANT: Hello, how can I help you today?

USER: I would like to go for a round trip to Seattle, so please help me in booking a flight on 07/19.

ASSISTANT: Sure, kindly mention your airport code.

USER: Sure, It is WA - SEA.

ASSISTANT: May I know your travel dates?

USER: I intend to return on 07/21.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 100 and single connection.

USER: Ok, please proceed.

ASSISTANT: Your booking is done and flight number is 1017.

USER: Thank you.

ASSISTANT: Thanks for reaching us.