You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Can you please book me a flight ticket from LGA to OAK to meet my family?

ASSISTANT: Sure, may I know your travel dates please?

USER: I have planned to travel on Sept 26th and return on Sept 28th.

ASSISTANT: Do you have any requirements?

USER: I like normal cost airline.

ASSISTANT: Can you mention your name to proceed further?

USER: Laura Johnson.

ASSISTANT: United Airlines has a connecting flight with number 1020 for fare 100, shall I proceed?

USER: Ok, please book it.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.