You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Could you please book me a flight ticket from IAH to AUS?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I will leave on Mar 24th and return on Mar 26th.

ASSISTANT: Do you have any preferences about flight connections?

USER: Yes, I need 1 connection in between.

ASSISTANT: Do you have any preferences about class?

USER: No, I am fine with any class.

ASSISTANT: Please mention your name.

USER: I am Elizabeth Evans.

ASSISTANT: There is no flights found under your preferable details.

USER: That's alright, thanks for your assistance.

ASSISTANT: Welcome, have a great day.