You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you today?

USER: I am Melissa Brown, want to travel from PHL to ORD. Please help me.

ASSISTANT:  Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT:  Do you prefer any halt in between your journey?

USER: I need a single halt.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travel dates are from 02/19 to 02/21.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT: Thanks for your precious time. We found Hawaiian airline fare of 200. Shall I proceed for booking with single stopover flight?

USER: It's ok. Please proceed with this.

ASSISTANT: Your ticket has been confirmed with airline number 1003.

USER: Thank you.

ASSISTANT: Than you for choosing us.