You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from IAD to MCO as a business trip. Can you do the reservation?

ASSISTANT: Sure, we can help you. Let me know your preferable dates to travel.

USER: My journey dates are 06/11 and 06/13.

ASSISTANT: Ok, how much can you spend for this reservation?

USER: Price should not cross 5000.

ASSISTANT: Can I have your name please?

USER: Rachel Thomas here.

ASSISTANT: Thank you for sharing your details, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Rachel Thomas, there are no flights available on your preferable dates.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.