You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may aid you today?

USER: I am Gregory Collins. I want to fly from Houston, TX - HOU. So can you please help me with book ticket with a price of 500?

ASSISTANT: Sure, I am gleeful to help you.

USER: Thank you.

ASSISTANT: Can you please mention your travelling dates?

USER: Sure, my depart is on 09/05 and arrival on 09/07.

ASSISTANT: Please specify your destination code?

USER: My destination code is Phoenix, AZ - PHX.

ASSISTANT: We found a Delta airline with flight 1014 and fare 100. Shall I proceed with booking?

USER: OK, please proceed to book.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping us.

ASSISTANT: Thank you for reaching us.