You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from CLT to IAH. Could you book a ticket?

ASSISTANT: Sure, I am happy to help you. Please let me know your travelling dates.

USER: Depart date is Feb, 28 and return by Mar, 1.

ASSISTANT: Do you prefer any break in between journey?

USER: I would prefer direct flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Michelle Brown.

ASSISTANT: Sorry, no flights are available on your journey dates.

USER: Thanks.

ASSISTANT: Thank you for contacting us.