You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you at this moment?

USER: My name is Michael Nelson and I want to book the flight ticket from HOU to OAK. Can you please help me?

ASSISTANT: Sure, I'm glad to help you in booking. Please let me know about the connection limit for this journey.

USER: I need a single connection flight.

ASSISTANT: May I know on which dates have you planned. So that I can check for the flight availability?

USER: Sure, my journey dates are Nov 21 and Nov 23.

ASSISTANT: Do you have any specifications to be met?

USER: I don't have any other preferences.

ASSISTANT: Please be on hold, I will get back to you in a minute.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting. Sorry to say, there are no flights are available for your desired intent.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for reaching us.