You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit the NASA space centre which is located in Houston, IAH. Can you avail me to book a flight ticket?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travel dates are Apr 01 and 03.

ASSISTANT: Can I know your source airport code?

USER: My source is from New York, LGA.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Can I know your name?

USER: Karen Williams here.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please make it confirm.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you for contacting us.