You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Carolyn Mitchell. I need to book a flight ticket on 04/23 and return on 04/25, can you help me with booking please?

ASSISTANT: Sure, please share me your airport codes?

USER: Sure, my airport codes are Washington, DC-DCA and Houston, TX-HOU.

ASSISTANT: Thanks for the details. We found 1012 Hawaiian airline with single connection and price of 400. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.