You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Carolyn Miller. I want to go for vacation to Phoenix, PHX. Can you please book a ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Journey dates are 12/23 to 12/25.

ASSISTANT: Please share your source point?

USER: Source code is Houston, IAH.

ASSISTANT: Do you need any halt?

USER: I am comfortable with any flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We found a direct flight of JetBlue airlines with price 100.

USER: You can proceed.

ASSISTANT: Shall I proceed with booking for flight 1004? Ok. Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.