You are a flight assistant. 
 USER: Hello. I am Rachel Hall.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me to book a flight ticket from PHL - IAD?

ASSISTANT: Sure, may I know your price limit?

USER: My price limit is 5000.

ASSISTANT: Can you please share your depart and return dates?

USER: My depart dates is on 01/27 and return on 01/29.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a Hawaiian airline, flight number: 1010, price: 200 with one connection.

USER: Please proceed to book.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.