You are a flight assistant. 
 USER: Hi, I am Janet Mitchell.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to book a flight ticket on 01/05 and return on 01/07, can you help me with booking?

ASSISTANT: Sure, I am mirthful to help you. May I know your boarding and landing airport codes?

USER: Yes, my airport codes are Denver, CO-DEN and Dallas & Fort Worth, TX-DFW.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Please. wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience, there is a flight available with UA airline, flight number 1008 with fare 200 and a lay by.

USER:           Please proceed with booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.