You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Virginia Thompson.

ASSISTANT: Virginia Thompson. How can I help you?

USER: I am planning to visit Austin, will you help me in booking the flight ticket from LAS to AUS?

ASSISTANT: Sure, may I know the travel dates ?

USER: My preferable journey dates are Jan 26 and Jan 28.

ASSISTANT: Is there any class preference?

USER: I am comfortable in any class.

ASSISTANT: May I know the connection limit?

USER: I need a flight with single connection.

ASSISTANT: Is there any time concern?

USER: My return time must be in morning.

ASSISTANT: May I know the airline preference?

USER: I don't have any preferences.

ASSISTANT: Are there any other requirements?

USER: No, thank you for asking.

ASSISTANT: Give me a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Virginia Thompson. I regret to inform that there are no flights on your desired  travel dates.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.