You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Clark.

ASSISTANT: How can I help you at this moment?

USER: I would like to meet my cousin at Philadelphia, please help me in booking a ticket from DCA to PHL.

ASSISTANT: Sure, I am happy to help you in booking flight ticket. Can you please mention your preferable travel dates?

USER: My planned travel dates are 12/27 and 12/29.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Sure, take your time.

ASSISTANT: Hawaiian airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I book this flight ticket for you?

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1003.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us, have a nice day.