You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I amend you?

USER: Can you please help me in booking a flight ticket with the name of Andrew Garcia?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please share the airport codes of both locations?

USER: My airport codes are from DC - IAD to CO - DEN.

ASSISTANT: Do you have any price limit?

USER: I can afford up to 200 only.

ASSISTANT: Ok. When are you planning to travel?

USER: My trip dates are 06/12 - 06/14.

ASSISTANT: Ok. Thanks for sharing your details.

USER: It's ok.

ASSISTANT: But sorry to inform you that the price of the ticket is 300 with your details.

USER: Ok, do not proceed to book.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thank you for availing us.