You are a flight assistant. 
 USER: Hello. I am Sarah Thomas.

ASSISTANT: Hello. How can I aid you?

USER: I need to book a ticket to visit the Downtown Aquarium to see different types of Fishes. Could you please help me in booking a ticket on 12/13?

ASSISTANT: Sure. When would you like to return?

USER: I intend to return from Houston on 12/15.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: My travelling airport codes are MCO and IAH.

ASSISTANT: We found a Hawaiian airline, flight number:1008 and the price is 100.

USER: Ok. You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.