You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Please book me a ticket from IAH to LAS to meet best friend.

ASSISTANT: Sure, please share your travel dates.

USER: I have planned to travel on Feb 05th and return on Feb 07th.

ASSISTANT: May I know your good name?

USER: Myself John Nelson.

ASSISTANT: Do you have any connection limit?

USER: I like connecting flight.

ASSISTANT: Do you have any other preferences?

USER: I want economy class.

ASSISTANT: We found a connecting flight 1027 in Delta airlines with cost 100. Shall I proceed for booking?

USER: Ok, please book this ticket.

ASSISTANT: Your booking is done in an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.