You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I want to fly from IAD to MCO. Can you book a ticket from that route?

ASSISTANT: Please provide your travelling dates.

USER: My planned travel dates are 07/13 and 07/15.

ASSISTANT: Do you need any connection limit?

USER: I am comfortable with direct flight only.

ASSISTANT: Are there any other specifications?

USER: No more, thank you.

ASSISTANT: May I know your name?

USER: Sure, Jonathan Martinez here.

ASSISTANT: There are no flights available on your required dates.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for opting us.