You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Samuel Anderson, please search flights on these travelling dates 05/11 and 05/13?

ASSISTANT: Sure, may I know on your nearest airport codes of travelling?

USER: My airport codes are EWR to AUS.

ASSISTANT: Wait a moment please.

USER: Ok, I will wait for your reply.

ASSISTANT: Samuel Anderson, there are no flights available on this route due to heavy bookings.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for reaching us.