You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Helen Wilson here.

ASSISTANT: Wilson, how may I help you?

USER:  I need a connecting flight from MCO to SEA. Could you book my flight ticket?

ASSISTANT: Sure, please provide your journey dates.

USER: Sure, I am planning to go on 07/13 and return on 07/15.

ASSISTANT: Please hold on.

USER: Sure, take your time.

ASSISTANT: Sorry, no flight is available on your route.

USER: That's fine, no problem. Thank you for assisting me.

ASSISTANT: Thank you for contacting us.