You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, can I know your travelling dates?

USER: My journey dates are 05/07 and 05/09.

ASSISTANT: May I know your journey codes?

USER: My airport codes are PHX-SEA.

ASSISTANT: Wait a minute.

USER: Ok.

ASSISTANT: Sorry, there are no flights available on your travel dates.

USER: No problem, Thanks for the information.

ASSISTANT: May I know your name, please?

USER: Emily Thompson here.

ASSISTANT: Thank you for availing us.