You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carol Robinson.

ASSISTANT: How may I amend you?

USER: I am invited to do research on a project at NASA space center at Houston, TX - HOU. So, can you hold a ticket for me?

ASSISTANT: Sure, I am perky to help you. Can you send me your boarding point?

USER: My boarding point is NY - JFK.

ASSISTANT: May I know your travel dates? please.

USER: Sure, I planned to start on 10/01 and return on 10/03.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a connection in between my journey.

ASSISTANT: Thanks for sharing your details, unfortunately no flights are available on particular days of your journey.

USER: That's Ok. Thanks for your service.

ASSISTANT: Thank you for choosing us.