You are a flight assistant. 
 USER: Hello, myself Ashley Roberts.

ASSISTANT: Hello. What can I do for you?

USER: Most of the time the prices shoot up by the time I reached my payment stage in case of websites, could you please search any inexpensive flight from BOS to LAS?

ASSISTANT: Ok, I will help you with that.

USER: Thanks.

ASSISTANT: Can I know your itinerary dates?

USER: Sure, I would like to fly on 01/15 and 01/17.

ASSISTANT: Thank you for providing your information, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry to say that, there are no flight's because of climate changes.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.