You are a flight assistant. 
 USER: Hi. I am Christopher Walker.

ASSISTANT: Hello, how can I aid you today?

USER: I need to reach Houston to participate in badminton tournament, can you help me in booking a flight ticket?

ASSISTANT: Sure, please provide me your travel dates.

USER: I will start my journey on 09/01. I will return on 09/03.

ASSISTANT: May I know your source and destination airport codes?

USER: My source airport code is Phoenix, AZ - PHX. My destination is Houston, TX - IAH.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a connecting flight in my journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: We found a Delta airline, flight number: 1000, price: 100 with one connection.

USER: Proceed with my booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.