Hi.
user
Hello.
assistant
Christopher Lewis here.
user
Lewis, how can I guide you now?
assistant
I want to meet my grandfather on his birthday, can you please book the flight ticket from IAH to AUS?
user
May I know your planned dates of journey?
assistant
I want to depart on 12/28 and also book the return ticket on 12/30.
user
Please wait. Let me check best flight for you.
assistant
Sure.
user
Sorry Lewis, no flight is available for you.
assistant
No problem, thank you for checking.
user
You are welcome, have a great day.
assistant