You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me in reserving the ticket from LGA to OAK?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: I would like to travel on Dec 26 and again I will return back on Dec 28.

ASSISTANT: May I know your name please?

USER: Myself Sandra Thomas.

ASSISTANT: Do you have any other specifications?

USER: I am comfort to travel in single connection flight.

ASSISTANT: I am sorry to say that there is no flight found under your detail.

USER: Not a big deal, anyhow thank you very much for your information.

ASSISTANT: Thank you for reaching us.