You are a flight assistant. 
 USER: Hello. I am Edward Wilson.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a ticket with the fare of 200?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: I have planned to travel on 05/20 and 05/22.

ASSISTANT: Can you share me your airport codes?

USER: My airport codes are from SEA to ORD.

ASSISTANT: Do you have any connection limit?

USER: I need a halt.

ASSISTANT: There is a flight 1019 in Hawaiian airline and price 400 with a connection. Shall I proceed?

USER: Yes, please book this ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.