You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit a NASA space center in Houston, so please book a flight ticket from LAS to IAH.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I would like to fly on June 28, return on June 30.

ASSISTANT: May I know your name?

USER: My name is Margaret Harris.

ASSISTANT: Do you have any other specifications?

USER: I need a single connecting flight.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Delta airlines with connecting flight and number 1020 fare of 100, Shall I proceed for booking?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.