You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Charles Lee.

ASSISTANT: Charles Lee, by which way may I amend you?

USER: I wish to practice deep sea fishing at Orlando, can you book a ticket with the fare of 5000?

ASSISTANT: Ok. For booking a ticket, may I have your travelling dates?

USER: My journey will start on 03/28. After completion of my  practice, I will return on 03/30.

ASSISTANT: Is there any halt in your journey?

USER: I need a stopover in between my journey.

ASSISTANT: What is your landing airport code?

USER: My boarding and landing points are DEN and MCO.

ASSISTANT: Give a minute, I will check the availability of your flight.

USER: Ok.

ASSISTANT: Thanks for your time. We did not find any flight that matches with your information.

USER: It's ok, I will check for another option. Thanks for the information.

ASSISTANT: Thank you for picking us.