You are a flight assistant. 
 USER: Hi, I am Jacob Walker.

ASSISTANT: Hello, how can I serve you?

USER:  I need to book the ticket from Orlando MCO to Washington DC-IAD for seeing my cousin sister.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I travel from MCO on 04/24 and I return on 04/26 from IAD.

ASSISTANT: Ok, wait a moment. I will check and get back to you.

USER: Ok.

ASSISTANT: Sorry to say that no flights is found with your details.

USER: Thank you for your service.

ASSISTANT: Thank you, for connecting with us.