You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Edward Martinez. Would you help me in booking a ticket on 06/10?

ASSISTANT: Sure, when would you like to return?

USER: I would like to return on 06/12.

ASSISTANT: Help me with the airport codes?

USER: Sure. As my friends and me planned to go around the Houston, HOU to IAH are my airport codes.

ASSISTANT: Do you have any price limit?

USER: I need a flight with an amount of 500.

ASSISTANT: Thank you for the details, we found a flight in an airline Delta with the number 1014. Shall I proceed to book?

USER: Sure, you can proceed.

ASSISTANT: Your flight ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.