You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to go to OAK in this week so can you please help me in flight ticket booking process from IAH?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you for your response, I want to take off on Mar 20 and book my return ticket also on Mar 22.

ASSISTANT: Sure, may I know your name to proceed further.

USER: Sure, my name is Alexander Anderson.

ASSISTANT: Do you need any layovers between your trip?

USER: I will prefer 1 break in between my journey.

ASSISTANT: Do you need business class or economy class?

USER: I am comfortable with any class.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: Sorry to say that there is no flight going on your way.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting our agency.