You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I have an interview at Washington, can you please book me a ticket?

ASSISTANT: Sure, please mention your airport codes?

USER: My from and to location airport codes are MCO and DCA.

ASSISTANT: May I know your travel dates?

USER: I would like to depart by 10/13 and return by 10/15.

ASSISTANT: Can I know your name for booking process?

USER: My name is Margaret Walker.

ASSISTANT: Sorry Walker, there is no flight found basis on your details.

USER: That's ok, I will choose any other mode of transportation. Thank you for your time.

ASSISTANT: Thank you for reaching us.