You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patricia Carter here.

ASSISTANT: How can I assist you?

USER: Can you please help me in booking a ticket from IAH to DCA?

ASSISTANT: Sure, can I know your travel dates?

USER: Ok. Here are my preferred travelling dates 06/07 and 06/09.

ASSISTANT: The flight 1018 of JetBlue airlines is available on your requested dates with a price of 300. Shall I proceed?

USER: Yes. Please book my ticket.

ASSISTANT: Carter, your reservation has been done successfully.

USER: Thank you for doing my help.

ASSISTANT: You are welcome.