You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Betty Lee. I need to book a ticket to meet my Grandfather from SFO on 04/19.

ASSISTANT: Sure, may I know your Destination code?

USER: Could you please help me in booking a ticket?

ASSISTANT: Sure, I will.

USER: My destination code is DTW. I intend to return on 04/21.

ASSISTANT: We found a flight with number 1025 and Hawaiian as airline. The cost of the ticket is 100.

USER: You can proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.