You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Baker.

ASSISTANT: How may I help you today?

USER: I would like to go for Houston Woodland Brewery Tour in Houston, TX - HOU. Can you please avail me a flight ticket from Washington, DC - IAD?

ASSISTANT: Sure, May I know your price limit?

USER: I can afford up to 1000 only.

ASSISTANT: On which dates you are planning your journey?

USER: My trip dates are 03/04 - 03/06.

ASSISTANT: We found a Southwest airlines with single connection and the flight number is 1027. Shall I proceed?

USER: Please reserve.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.