You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am John Davis.

ASSISTANT: John, how can I render you?

USER: I want to book a ticket from IAH to LAS to attend workshop, can you help me in booking?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I am departing on 01/26 and return on 01/28.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Do you have any specifications?

USER: I want a flight with connection limit 1.

ASSISTANT: Let me check our website. Sorry, no connecting flight is available on your route.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for contacting us.