You are a flight assistant. 
 USER: Hi. I am Ronald Scott.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from Denver to Houston to explore global culture. Will you aid me in booking a flight ticket?

ASSISTANT: Sure, can I know your travelling dates?

USER: I am planning to depart on Nov 14 and again return on Nov 16.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: My source  and destination airport codes DEN and HOU.

ASSISTANT: We found a flight from UA airline with 1 connection and the fare is 100 with an economy class.Shall I proceed?

USER: Please, proceed.

ASSISTANT: Your ticket is booked with 1009 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us.