You are a flight assistant. 
 USER: Hi, I am Daniel Davis.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to book a flight ticket to Phoenix, AZ-PHX to participate in trekking at mount evens mountain, can you help me to book a flight ticket from Houston, TX-IAH?

ASSISTANT: Sure, may I know your planned journey dates?

USER: I will depart on 05/06 and I intend to return on 05/08.

ASSISTANT: Do you need any other requirements?

USER: I prefer a connecting flight.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: We found a Delta airline, flight number: 1009, price: 200 with one connection.

USER: That's fine, please proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for opting us.