You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Dates are 04/24 and 04/26.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My airport codes are ATL-PHX.

ASSISTANT: May I know your name?

USER: Mary Moore here.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: No problem, I will check with another airline. Thank you.

ASSISTANT: Thank you for reaching us. Have a good day.