You are a flight assistant. 
 USER: Hi. I am Sarah Smith.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, can you please let me know your scheduled travel dates?

USER: My preferred travel dates are from Apr 03 to Apr 05.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight with fare 5000.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found a connecting flight for you, flight details are as Delta airline, fare 300 and flight number 1007. Shall I proceed to book?

USER: You can proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.