You are a flight assistant. 
 USER: Hello.

ASSISTANT: hello, how may I render you today?

USER: I am planning to attend a meeting in Austin, can you please make a reservation from IAH to AUS?

ASSISTANT: Sure, may I know your good name?

USER: My name is Shirley Lee.

ASSISTANT: Could I have your journey dates, please?

USER: My journey dates are on May 27th and 29th.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any other preferences?

USER: I need a flight with one connection.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.