You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Rachel Edwards from Washington. Can you please help me in flight ticket booking process from DCA to LAS?

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you for your response, I want to take off on May 3 and please confirm my return ticket also on May 05.

ASSISTANT: Do you have any class preference? Rachel Edwards, there is a flight available with price 100 and the connection is 1 with Hawaiian airline. Would you like me to proceed with the booking?

USER: No but I want to departure in afternoon time.

ASSISTANT: Yes, shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed with 1003 flight number.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.