You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a light ticket from DCA to IAH?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are from May 29th to May 31st.

ASSISTANT: May I know your airline preference?

USER: Yes, I prefer a normal-cost airline.

ASSISTANT: Do you have any other requirements?

USER: Yes, I want to depart in the morning. I want a break in between the journey.

ASSISTANT: May I know your name please?

USER: I am Jerry Williams.

ASSISTANT: We found a Hawaiian airline, flight number: 1003, depart time: 4:00AM, price: 200 with one connection.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.