You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: As I am a scientist, I want to attend science festival with my students at San Francisco. Can you do the reservation?

ASSISTANT: Sure, I can help you. May I know your name?

USER: Debra Campbell here.

ASSISTANT: Can I know your travelling dates?

USER: Dates are 12/30 and 01/01.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are CLT-SFO.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: We found a Delta airline, flight number:1008 and the price is 100.

USER: Please do the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.