You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Myself Emily Clark. Do you have any flight from DTW to DCA as I need to attend my convocation?

ASSISTANT: Can you please help me with your travelling dates?

USER: MY preferable dates are 08/19 to 08/21.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Ok.

ASSISTANT: Emily, there is a flight available with price 100.Would you like me to proceed the booking?

USER: Ok.

ASSISTANT: Your booking is confirmed. Your flight number is 1015 with Hawaiian airline.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for contacting us.