You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a flight ticket from IAH to OAK?

ASSISTANT: Sure, can you share your trip dates?

USER: My travelling dates are July 26 to July 28.

ASSISTANT: Do you have any specifications?

USER: I need a single connection of flight.

ASSISTANT: May I know your name?

USER: My name is Larry Edwards.

ASSISTANT: There is a connecting flight with number 1001 in airline Delta, the fare is 100 in economy class.

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.