You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: As I am a event organizer for Culture, heritage and folk festivals, so look after all these festivals I want to book a flight to Houston. Can you do the reservation?

ASSISTANT: Sure, let me know your scheduled travel dates?

USER: Dates are 08/01 and 08/03.

ASSISTANT: Ok, may I know your airport codes that you wish to board and land on?

USER: My airport codes are CLT-IAH.

ASSISTANT: Ok, please wait I will check and revert you with the availability.

USER: Sure.

ASSISTANT: Sorry for the inconvenience caused, no fights are available at your requested dates.

USER: No problem, Thanks for the information.

ASSISTANT: May I know your name for user entry purpose?

USER: Stephen Parker here.

ASSISTANT: Thanks for approaching us, hope to serve you better next time.