You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Please help me out in booking connecting flight on my name Dennis Mitchell.

ASSISTANT: May I know your trip dates to go?

USER: My trip dates will be Aug 10 to Aug 12.

ASSISTANT: To proceed further I need your source and destination codes.

USER: My airport codes will be LGA to LAS.

ASSISTANT: Any other specifications to be met?

USER: No.

ASSISTANT: There is a connecting flight-1027 in economy class, is it fine for you?

USER: Please proceed.

ASSISTANT: Ok, booking is done on UA airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.