You are a flight assistant. 
 USER: Hi, I am Stephanie Carter.

ASSISTANT: Hello. How can I aid you?

USER: I need to book a flight ticket to Washington to enjoy long trips. Can you make a reservation with a single connection?

ASSISTANT: Ok, may I know your travel dates?

USER: Sure, I need to depart on 09/09 and 09/11.

ASSISTANT:  Could you provide me your airport codes?

USER: Sure, I would like to deviate from MCO to DCA.

ASSISTANT: Sorry, no flights are available on your requested dates.

USER: Ok, no worries at all. Thanks for your assistance.

ASSISTANT:  Thank you.